Binplace dab.draft.schema.json

[Aniruddh25]

Why make this change?

• Closes Binplace the json schema with the release artifacts #956
• After the doing the file transform to set the version number of json schema = build version, we are currently not binplacing it in the artifacts so there is no final schema generated. This schema is required for releasing for ease of config generation for our developers.

What is this change?

• Adds reference to dab.draft.schema.json in the Cli.csproj so it gets binplaced with CopyAlways upon packaging/building
• Explicitly copy it to the artifacts as well so as to be pushed to the github release page without requiring extraction from nuget package. It will also be available in the nuget/zip packages.
• Also updated the version location to include the url where this schema will be hosted upon release. The url https://datapaibuilder.azureedge.net/schemas/vmajor.minor.patch-alpha/dab.draft.schema.json
  is not valid at time of generation of file but would become valid after the release is done. We will need to update the url once we move out of alpha releases.

How was this tested?

• Triggered a build on this branch and ensured the schema file was binplaced.

Enabling merge