Refactor getBuiltInMacros() to be SBSv1 specific. This are the hard-coded macros misc macros we are adding for SBSv1.
For SBSv2, they are retrieved from the sbs config query. Also, clean up some API and comments on public APIS
bin.includes = plugin.xml,\
META-INF/MANIFEST.MF,\
.
jars.compile.order = .
source.. = src/
output.. = bin/