Better Optimize Matching Speed

[TrifectaIII]

• Send match request data as jpeg instead of png (canvas.toDataURL() supports this)

[TrifectaIII]

sending data as jpeg now works, does improve performance, jury out on lost accuracy

[TrifectaIII]

Learn more re: similarity hashing to use with matching instead of feature descriptors

Edit: This is called perceptual hashing, basics here: https://www.pyimagesearch.com/2017/11/27/image-hashing-opencv-python/

will require more processing of image prior to comparison