Re-added xbim.analysis (but had to disable the bits of code that don't currently compile)

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/LatestSource;C36775
Xbim3DModelContext updated to prevent export of openings and projections and include the bounding boxes of products

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/LatestSource;C36780
WexBIM export updated to write out model bounds and correct boudning box to be axis aligned

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/LatestSource;C36789
Support for regions added to WexBIM streamer

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/LatestSource;C36790
Extended the AssemblyResolver so that it can handle the dependencies of the EngineXX.dlls when loaded from a subfolder (e.g. /Plugins/)

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS13]$/xBIM/LatestSource;C36792
Merge commit 'e1afb89acf0ef43f442562ce5566d3dec97d62d7'