Support CamelCase custom tags (autonomous custom elements)

[mwpastore]

React and Ember (among others) register web components with custom DOM elements in <CamelCase /> format. Ember also supports <bag.CamelCase /> and <Namespace::CamelCase /> formats. It would be useful if HTML Tidy's custom tags feature understood more than just <kebab-case /> format for autonomous custom elements.

[kirisakow]

What you call snake-case is called kebab-case and not snake_case.

[mwpastore]

@kirisakow Fixed. Thank you!

[geoffmcl]

@mwpastore if I am reading this correctly, maybe there is a feature request in here, somewhere...

At present, the option --custom-tags <blocklevel|empty|inline|pre>, and the service TY_(elementIsAutonomousCustomFormat)( ctmbstr element ) accepts any-thing with a hyphen... which I assume is called <kebab-case />, not <Snake_Case />, thanks @kirisakow ...

It seems you want to extend that to <CamelCase />, <bag.CamelCase />, <Namespace::CamelCase />, ... Is that it? More?

So each of these need to be defined, in code logic, developed, tested, etc, ... add some docs definitions, descriptions...

Also discuss what this feature brings to Tidy... spell out its use case... pros/cons...

Look forward to further feedback, diffs, PR, to move this forward, off discussion, to a fully specs feature... thanks...