Function convertCase_Factory

generate a specific case converter. convenient for continued use.
see kebabToCamel and camelToKebab as examples that are generated via this function

convertCase_Factory(from_casetype, to_casetype): ((token: string) => string)
Parameters
- from_casetype: NamingCaseTuple
- to_casetype: NamingCaseTuple
Returns ((token: string) => string)
- - (token): string
  - Parameters
    - token: string
    Returns string
- Defined in work/kitchensink_ts/kitchensink_ts/src/stringman.ts:192