Fixed some log messaging for CxxTest
Updated several comments in parser classes. Refactored VCParser into VCParserHolder. The latter now loads and holds properties for Visual C++ on request. This functionality was originally in AbstractMSBuildPluginMojo but it now lives in VCProjectHolder, so we can have a clean break between parser functionality and Mojos that use that functionality.
Refactored the way we process Java logging generated by utility classes (e.g. the parsers). We now capture Java logging using a Logger Handler which then relays the log messages to Maven log.