Abling Disability (#4485)

This PR implements a system for manipulating a client's color safely and also ports a prioritization system for sorting client color from /tg/. Currently this PR also implements client coloration in the form of color blindness, namely:
Monochromacy
Deuteranopia
Tritanopia
Protanopia

DTP are mild brain traumas, whereas monocrhomacy is a severe brain trauma.
Furthermore, this PR removes the Needs Glasses prompt in character creation, and replaces it with a disability selector, allowing people to more closely refine their special little snowflakes.
Current disabilities available:
Nervousness
Nearsightedness
Deuteranopia
Tritanopia
Protanopia
Deafness
Muteness

SQL/migrate/V020__disabilities.sql

@@ -0,0 +1,10 @@
+--
+-- Adds different disabilities into the loadout
+-- Implemented in #4485
+--
+ALTER TABLE `ss13_characters`
+    CHANGE COLUMN `disabilities` `disabilities` TEXT NULL DEFAULT NULL AFTER `alternate_titles`;
+    
+UPDATE `ss13_characters` SET `disabilities` = NULL WHERE `disabilities` = 0;
+
+UPDATE `ss13_characters` SET `disabilities` = "[\"Nearsightedness\"]" WHERE `disabilities` = 1;