Created placeholder files where we'll eventually implement unit tests for the modules in ExtCore.Control.Collections.
Added some documentation comments.
Minor cleanup: added a few type annotations and renamed parameters for uniformity.
Stubbed test functions for the modules in ExtCore.Control.
Stubbed test functions for the modules under the ExtCore.Control.Collections namespace.
Changed the namespacing scheme used by all files in the ExtCore.Tests project -- now, instead of suffixing the namespace with Tests, we prefix the namespace with Tests. This avoids issues with module nesting and so forth, and makes the tests display in a reasonable way within NUnit.
Removed unnecessary uses of CompilationRepresentationAttribute.
Merge branch 'master' into vectors