rotomap-edit: 't' to relate moles from prev image
rotomap-edit: 't' to relate moles from prev image

Press 't' in mole-edit mode to automatically relate moles from the
previously viewed image to the current one. This greatly reduces the
time needed to match moles up to eachother.

Test Plan:
.. Use 't' to autorelate a rotomap, it's pretty good! ..

aevri/mel,aevri/mel