LCL: TCustomForm.AddHandlerFirstShow+AddHandlerClose+AddHandlerCreate: changed default AsFirst to false for consistency

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39784 4005530d-fff6-0310-9dd1-cebe43e6787f
LCL: TScreen.AddHandlerFormAdded+AddHandlerRemoveForm+AddHandlerActiveControlChanged+AddHandlerActiveFormChanged+AddHandlerFormVisibleChanged: changed default AsFirst to false for consistency

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39785 4005530d-fff6-0310-9dd1-cebe43e6787f
LCL: fixed AsFirst for AddHandler of TCustomForm, TControl and TApplication

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39786 4005530d-fff6-0310-9dd1-cebe43e6787f