start work on BSharp runtime
core BSharpRuntime interface API impoved
Merge branch 'master' into bsrt
Embedded support for BSharpResolver added
core RT B# infrastructure with dir-based class provider
refactor
B# runtime improvements
b#rt activation model v0.1
bsharp container extension  implemented
Container now assumed type==null as type==typeof(object) in Get and FindComponent
RuntimeClassDescriptor tested
magic const fix
B#RT RTCls tested
B#RT activator tested
bsrt 0.5 finished and tested, ready for merge