TEXT-217: Add SnakeCase Parsing

[Claudenw]

This implementation adds a CasedString class that can convert between several different formats.

Initially supported formats:

• Camel case identifies strings like 'CamelCase'.
• Snake case identifies strings like 'Snake_Case'
• Kebab case identifies strings like 'kebab-case'
• Phrase case identifies phrases of words like 'phrase case'
• Dot case identifies strings of words like 'dot.case'

CasedString does not convert the character case except where mandated by the case. so SnakeCase converted to kabob case is Snake-Case and kabob-case converted to snake case is kabobCase

Other utilities are available to modify the characte case.