LazControls: Add TAdvancedTabControl (TabControl with toolbar)

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42578 4005530d-fff6-0310-9dd1-cebe43e6787f
LazControls: Add TAdvancedTabControl (TabControl with toolbar)

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42579 4005530d-fff6-0310-9dd1-cebe43e6787f