IDE: mode matrix: moved custom options addition to inherited options

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41605 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: mode matrix: trim values and targets

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41606 4005530d-fff6-0310-9dd1-cebe43e6787f