bmesh: face creation from a single selected vertex/edge, now extends the selection along wire/boundary edges and makes a face.
Selection is specifically so you can continuously fill in holes by tapping the Fkey.

Similar functionality to the F2 addon, however the mouse location isn't used.


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@55136 954f8c5b-7b00-dc11-b283-0030488c597c