Add dilatometer as sensor

Changed type of functions as needed and called Sensor_Add appropriately.
Merge branch 'master' of https://github.com/szmoore/MCTX3420
Done a bunch of changes to image handling
Merge pull request #69 from Callum-/dilatometer

Done a bunch of changes to image handling
Delete test_blurred.jpg

moved
Delete test_edge_avg.jpg

moved
Delete testimage.jpg

moved
Delete test_edge.jpg

moved
report changes. longer!?!?!