Migration from 0.1.x to 0.3.x

Management API changes

Management API for creating resources (assets, policydefinitions, contractdefinitions, ...) will return a body containing the id of the created resource
Added a POST /request for every management endpoint (assets, policydefinitions, ...) to query all the resources. The existent GET / have been deprecated
added id field in DataRequestDTO (/transferprocess management api), if not set it will use a randomly generated one.
Removed field assetId from ContractOffer. It was always null though, so there should be nothing to do about it.
on POST /contractdefinitions a duration field can be added to control the duration of the contract.
added the GET /assets/{id}/address endpoint to being able to retrieve the stored DataAddress

Removed default value for setting edc.transfer.proxy.token.verifier.publickey.alias so it must be valued accordingly
made the state machine settings configurable so it will be possible to tune them accordingly. More details in the related documentation entry.
refactored the HTTP server contexts, they can be configured with the settings group web.http.management, web.http.control, web.http.protocol, web.http.public. More details on the related decision record
renamed edc.oauth.public.key.alias setting to edc.oauth.certificate.alias

Supported /public data plane endpoint without trailing slash, that can be eventually removed from the configuration
packages name changed from org.eclipse.dataspaceconnector to org.eclipse.edc