FpDebuger (pure): Fix for pausing the debuggee

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@45866 4005530d-fff6-0310-9dd1-cebe43e6787f
FpDebugger (pure): Implemented pause (Linux)

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@45867 4005530d-fff6-0310-9dd1-cebe43e6787f