Rename Build to BuildSummary

--HG--
rename : src/TeamCitySharp/DomainEntities/Build.cs => src/TeamCitySharp/DomainEntities/BuildSummary.cs
extra : amend_source : 11d03bd2944813bc328f7c5b2bd1e1691750527d
Created Build object
Add FillInBuildData method to get full data from a BuildSummary