lcl-cocoa: Fixes regression introduced in 46166: tab in TEdit was inputting char instead of switching to next control; Implements support for TabOrder; Starts fixings TBitBtn.Glyph but this isnt working yet

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46594 4005530d-fff6-0310-9dd1-cebe43e6787f