fix [#34143] Can't Select Bones in Weight paint mode with Left mouse Selection enabled
use action-mouse for weight-sample and weight-sample-group rather then left mouse.

Alt+Left-Mouse more or less worked by accident, changing these keymaps makes it so Ctrl+LMB can be used for selection instead.


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@54453 954f8c5b-7b00-dc11-b283-0030488c597c