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

source.sourcegen.jar = src/
output.sourcegen.jar = bin/
bin.includes = plugin.xml,\
               sourcegen.jar,\
               icons/,\
               META-INF/