feat: multiple templates

[cgpro]

All works great, but multiple templates would be cool.

For example in the .webfontrc:
{ ... "template": ['html', 'scss'] ... }

Of course not urgent, but for preview purposes, the html option would be perfect :-)

[alexander-akait]

@cgpro thanks for issue, do not have time on this right now, but PR welcome 👍

[jimmyandrade]

Hello, @cgpro

We already have the html option, but it really cannot be used in conjunction with other options.
However, @m-jung have created the PR #201 to implement this functionality, and we're looking for need help to validate it.

Could you help us with that?