Reengineer IStrategizer to be binary isolated in a DLL from Yarmouk
- IStrategizer build VS2013 while Yarmouk build VS2010 in the same solution
- Write the RtsAiEngine.h (initially not-implemented) interface which is the contract between IStrategizer and Yarmouk for BWAPI exposed functionalities

Signed-off-by: MHesham <mhesham.fcis@gmail.com>