* added escriptgrammar as external lib where it belongs. Silenced warnings.
* bscript compiler warning fixes
* special include file to get rid of gcc warnings about antlr4
* misc windows warnings
* time specifc warnings
* buildfix + apple warnings
* never trust apple
* windows debug build warnings
* some windows clang warnings
* last warning fix
* Add SourceFileIdentifier, SourceLocation, formatfwd
* Add formatfwd.h to clib make sources
* Note to not keep a SourceFileLocation after the lifetime of the SourceFileIdentifiers.