Customizable start/end symbol for template fields

[myedibleenso]

Thanks for developing and maintaining giter8.

I couldn't find anything in the documentation about this, but is there a simple way to use a different symbol for identifying template fields?

It looks as if $ is hard-coded in several places:

• Template.scala
• StringRender.scala

Instead of using $ for $var$, I would like to be able to specify a different start/end symbol (ex. %$% in %$%var%$%). It would be nice if this could be handled via a configuration property.

Perhaps this is a way to address string interpolation conflicts described in #102, #288, and elsewhere?

[myedibleenso]

Ah, I had checked the issues but missed an open PR (#296) that addresses exactly this.