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

source.. = src/
output.. = bin/
bin.includes = plugin.xml,\
               plugin.properties,\
               META-INF/,\
               .