crop_rec for 700D
Created originally on Bitbucket by daniel_fort (Daniel Fort)
Was already merged in Bitbucket before import, marked as merged by the import user
This adds the same basic 3x3 720p crop_rec capabilities as the EOSM.
There's lots more that can be done like getting lossless compression and the other crop_rec options working on the various camera models. Various users are working on it, this is just a first step.
Note that crop_rec on the 700D and EOSM introduces some interesting focus pixel patterns that can be dealt with in MLV files but it also shows visible focus pixels on H.264 movie files.