Added ICarbideBuildConfigutation#getCompileTimeMacros() and EpocEngineHelper#getGlobalDefinesForConfiguration() as convenience wrappers for getting macros contributing to a carbide project. Removed ICarbideBuildConfiguration#hasSTDCPPSupport(). Refactored CarbideLanguageData to use simplified macro retrieval

/*
========================================================================
 Name        : ${fileName}
 Author      : ${author}
 Copyright   : ${copyright}
 Description : 
========================================================================
*/