Fix workspace and remote path mapping

[skoro]

This PR fixes two cases when working with Hack lang projects on Windows environment.

1. A Hack lang project is cloned locally on the file system, e.g. d:\projects\hack-app.
2. A Hack lang project is cloned inside WSL environment.

In both cases there will be wrong mapping between a local workspace path and remote one.

In the first case the Windows directory separators are used in the path:

in the src/Utils.ts
file.toString() = "file:///c%3A/Users/user/Documents/Projects/hacklang/test"
config.remoteWorkspacePath = "c:\Users\user\Documents\Projects\hacklang\test"

In the second, a hostname wsl.localhost is added to the local workspace path:

in the src/Utils.ts:
file.toString() = "file://wsl.localhost/Ubuntu/home/user/git/test"
config.remoteWorkspacePath = "\\wsl.localhost\Ubuntu\home\user\git\test"

To fix the mapping, the local workspace is converted to an uri path and then replaced by the remoted path which is already converted too.

Closes #136

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