Allow inserting and deleting tools and not only appending them.
Add possibility to enable/disable and toggle tools.
Send wxUpdateUIEvent for the tools.
Add various properties accessors.
Closes#13835.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70297 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775