src/lib/cortex/core: Added Message.clp
src/lib/cortex/core: Added Message.clp

Defines the concept of a message for cross module communication.

DrItanium/electron,DrItanium/electron,DrItanium/electron-platform,DrItanium/AdventureEngine,DrItanium/neutron,DrItanium/electron-platform,DrItanium/electron,DrItanium/AdventureEngine,DrItanium/electron-platform