macros: add menu and toolbar command to easily create a new macro

(integrated from komodo (trunk) change 84535 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14310 b87d16e7-d29f-4ee1-b5ec-817d645d335f
macros: add the icon for the new macro menu/toolbar

(integrated from komodo (trunk) change 84536 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14311 b87d16e7-d29f-4ee1-b5ec-817d645d335f