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

bin.includes = META-INF/,\
               xmlunit1.0.jar,\
               tools/,\
               testsupport.jar
jars.compile.order = testsupport.jar
source.testsupport.jar = src/
output.testsupport.jar = bin/