Move/Rename Adapter Tests

[FraserGreenroyd]

Following workshop with @alelom to put the TDD into the bot, we want to make the following changes:

• Rename the SLN file to {Name_Of_Repo}_Tests - so in this case BHoM_Adapter_Tests
• Move the code to sit in the folder path .ci/unit-tests/
• Have the Test DLL copy to the C:\ProgramData\BHoM\Assemblies folder - @alelom to investigate ability to not copy when running tests locally