Add simple and special case mapping (#78)

Co-authored-by: Mathias Bynens <mathias@qiwi.be>

Author: JLHwung

README.md

@@ -87,6 +87,12 @@ Note that these READMEs are auto-generated by this script, too – they describe
 	'Case_Folding': [
 		'C', 'F', 'S', 'T'
 	],
+	'Simple_Case_Mapping': [
+		'Uppercase', 'Lowercase', 'Titlecase'
+	],
+	'Special_Casing': [
+		'Uppercase', 'Lowercase', 'Titlecase', …
+	],
 	'Bidi_Class': [
 		'Arabic_Letter', 'Arabic_Number', 'Boundary_Neutral', …
 	],