initial checkin
-moved core projects to external lib MMG.Core
-updated references
pulled changes from mmg003
updated solution file to include projects.
Add to source control from Visual Studio
added interfaces, removed dbcontext manager infra implementation.
add ef impl of context config and manager
add mmg.infra.efpersistence
pull changes from mmg003 (move shared core/infra to diff linked repo)
pull mmg003 from mmg.lgcydapi (create infra.efpersistence)
add prj to solution
organized solution
pull mmg004 - mmg.core solution
added default constr that will initialize list of mapping assemblies.
added EF contextbuilder and efdbcontext wrapper class.
ISpecfications - add IsSatisfiedBy method to interface and implement.
renamed params
added NotSpec
added ref link
fix using stmt