SynEdit: TextAttributes refactor class structure

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41167 4005530d-fff6-0310-9dd1-cebe43e6787f
Move files dealing with Heaptrc output. Part of issue #19837

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41168 4005530d-fff6-0310-9dd1-cebe43e6787f