[feat]: [DBOPS-306]: Onboard DBDevOps entities (#535)

* onboard db devops entities

* Authentication fix

* address comments

harness/dbops/.gitignore

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+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof

harness/dbops/.swagger-codegen-ignore

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+# Swagger Codegen Ignore
+# Generated by swagger-codegen https://github.com/swagger-api/swagger-codegen
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell Swagger Codgen to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md

harness/dbops/.swagger-codegen/VERSION

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+3.0.57

harness/dbops/.travis.yml

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+language: go
+
+install:
+  - go get -d -v .
+
+script:
+  - go build -v ./
+

harness/dbops/README.md

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+# Go API client for swagger
+
+This is the Open Api Spec 3 for the DB Service
+
+## Overview
+This API client was generated by the [swagger-codegen](https://github.com/swagger-api/swagger-codegen) project.  By using the [swagger-spec](https://github.com/swagger-api/swagger-spec) from a remote server, you can easily generate an API client.
+
+- API version: 1.0
+- Package version: 1.0.0
+- Build package: io.swagger.codegen.v3.generators.go.GoClientCodegen
+
+## Installation
+Put the package under your project folder and add the following in import:
+```golang
+import "./swagger"
+```
+
+## Documentation for API Endpoints
+
+All URIs are relative to */*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*DatabaseInstanceApi* | [**V1CreateProjDbSchemaInstance**](docs/DatabaseInstanceApi.md#v1createprojdbschemainstance) | **Post** /v1/orgs/{org}/projects/{project}/dbschema/{dbschema}/instance | Create a database instance
+*DatabaseInstanceApi* | [**V1DeleteProjDbSchemaInstance**](docs/DatabaseInstanceApi.md#v1deleteprojdbschemainstance) | **Delete** /v1/orgs/{org}/projects/{project}/dbschema/{dbschema}/instance/{dbinstance} | Delete a database instance
+*DatabaseInstanceApi* | [**V1GetProjDbSchemaInstance**](docs/DatabaseInstanceApi.md#v1getprojdbschemainstance) | **Get** /v1/orgs/{org}/projects/{project}/dbschema/{dbschema}/instance/{dbinstance} | Get a database instance
+*DatabaseInstanceApi* | [**V1ListProjDbSchemaInstance**](docs/DatabaseInstanceApi.md#v1listprojdbschemainstance) | **Get** /v1/orgs/{org}/projects/{project}/dbschema/{dbschema}/instance | List database instances
+*DatabaseSchemaApi* | [**V1CreateProjDbSchema**](docs/DatabaseSchemaApi.md#v1createprojdbschema) | **Post** /v1/orgs/{org}/projects/{project}/dbschema | Create a database schema
+*DatabaseSchemaApi* | [**V1DeleteProjDbSchema**](docs/DatabaseSchemaApi.md#v1deleteprojdbschema) | **Delete** /v1/orgs/{org}/projects/{project}/dbschema/{dbschema} | Delete a database schema
+*DatabaseSchemaApi* | [**V1GetProjDbSchema**](docs/DatabaseSchemaApi.md#v1getprojdbschema) | **Get** /v1/orgs/{org}/projects/{project}/dbschema/{dbschema} | Get a database schema
+*DatabaseSchemaApi* | [**V1ListProjDbSchema**](docs/DatabaseSchemaApi.md#v1listprojdbschema) | **Get** /v1/orgs/{org}/projects/{project}/dbschema | List database schemas
+*DatabaseSchemaApi* | [**V1UpdateProjDbSchema**](docs/DatabaseSchemaApi.md#v1updateprojdbschema) | **Put** /v1/orgs/{org}/projects/{project}/dbschema/{dbschema} | Update a database schema
+*DatabaseSchemaApi* | [**V1UpdateProjDbSchemaInstance**](docs/DatabaseSchemaApi.md#v1updateprojdbschemainstance) | **Put** /v1/orgs/{org}/projects/{project}/dbschema/{dbschema}/instance/{dbinstance} | Update a database instance
+*LogIngestApi* | [**V1GetDbinstanceLog**](docs/LogIngestApi.md#v1getdbinstancelog) | **Get** /v1/orgs/{org}/projects/{project}/dbschema/{dbschema}/instance/{dbinstance}/logs/{log} | 
+*LogIngestApi* | [**V1IngestLogs**](docs/LogIngestApi.md#v1ingestlogs) | **Post** /v1/orgs/{org}/projects/{project}/dbschema/{dbschema}/instance/{dbinstance}/logs | Ingest database migration logs
+*PipelineStepApi* | [**ConsumeV1StepPluginResponse**](docs/PipelineStepApi.md#consumev1steppluginresponse) | **Post** /v1/step/plugin-response | ConsumePluginResponse
+*PipelineStepApi* | [**CreateV1StepPluginInputs**](docs/PipelineStepApi.md#createv1stepplugininputs) | **Post** /v1/step/plugin-inputs | CreatePluginInputs
+
+## Documentation For Models
+
+ - [Changelog](docs/Changelog.md)
+ - [Command](docs/Command.md)
+ - [CommandExecutionStatus](docs/CommandExecutionStatus.md)
+ - [DbInstanceIn](docs/DbInstanceIn.md)
+ - [DbInstanceOut](docs/DbInstanceOut.md)
+ - [DbSchemaIn](docs/DbSchemaIn.md)
+ - [DbSchemaOut](docs/DbSchemaOut.md)
+ - [InlineResponse200](docs/InlineResponse200.md)
+ - [ModelError](docs/ModelError.md)
+ - [ParsedLogOut](docs/ParsedLogOut.md)
+
+## Documentation For Authorization
+
+## Authorization
+## x-api-key
+- **Type**: API key 
+
+Example
+```golang
+auth := context.WithValue(context.Background(), sw.ContextAPIKey, sw.APIKey{
+	Key: "APIKEY",
+	Prefix: "Bearer", // Omit if not necessary.
+})
+r, err := client.Service.Operation(auth, args)
+```
+
+## Author
+
+[email protected]