Title Case (and maybe other pipes?) separators as an option

[Helvio88]

Is your feature request related to a problem? Please describe.
Title Case is a nice pipe, but it could be more customizable. For instance, some surnames like O'HARA would be cased to O'hara. A great solution would be to add an optional parameter for separator tokens.

Describe the solution you'd like
Something like: {{ my_string | titleCase : ' \n\t'-' }} would capitalize the characters after [SPACE], [NEWLINE], [TAB], Apostrophe or Dash.

Describe alternatives you've considered
None

Additional context
As stated before, useful for surnames, but could be further customized, too, per user.