codetools: added ReIndent

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@40805 4005530d-fff6-0310-9dd1-cebe43e6787f
tests: added TestReIndent

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@40806 4005530d-fff6-0310-9dd1-cebe43e6787f