Adds hash_test code

README.md

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+
+
+ - Take in arbitrary input and return a deterministic color
+ - Color chosen can be limited in several ways:
+   - only visually / noticibly distinct colors to choose from
+   - Color exclusions
+     - dynamic color exclusions (optional terminal context)
+   - colors within different terminal support classes (i.e. term-256)
+
+ - Offer to return Hex codes (6 digits or 3)
+ - Offer to return ascii escape codes
+ - If the input is text, offer to wrap the input text and return the output as a string
+
+
+1. take input as bytes
+1. md5 hash the input
+1. use modulo against the sum to choose the color to return from the subset of colors selected.