Takes an input of rgb888 coded images to rgb565 images for AdafruitGFX sprite formatting convention in python script. converts to symbol coding, one letter consists of one rgb565 color.
##Image Input example
-> RGB Image -> .png format
##Converts to:
000000000000L 00jkkkjjjj00L 00lmlllnnn00L 0llmlllllnn0L 0llmlllllnn0L 0llmloollnn0L 0llpooollnn0L 0lppoooqlnn0L 0lpooooqlnn0L 0looooqqlnn0L 0looqqqllnn0L 0lqqqqlllnn0L 0llllllllnn0L 0llmlllllln0L 0llmllllllj0L