KSPAssembly for mod dependency

Add KSPAssembly to AssemblyInfo.cs to for improved dependency support. Can probably be merged whenever RPM updates.

See here regarding [RPM specifically](http://forum.kerbalspaceprogram.com/threads/57603-0-23-5-RasterPropMonitor-make-your-IVA-a-glass-cockpit-%28v0-16%29-20-Apr?p=1229827&viewfull=1#post1229827).