Add support for Semantic Types in the service definition metadata, which get represented as annotations in the CSDL metadata
(cherry picked from commit 5cbcb8b282d7668ab69ec5dadc8edfc30bb01e1d)
Update version number to 0.5.2
Merge pull request #118 from andrewmcguinness/0.5.2

Add support for Semantic Types in the service definition metadata, which...