Configuration parameter to change the delimiters

[kpym]

It would be nice if we can setup the default delimiters when the template file has already {{...}} for some other propose.

I know that we can use {{`{{The original text}}`}}, but I think that a configuration parameter that allows for example to use [[.Orbit.Values.name]] would be simpler for the user.

In go template library it is easy to change the delimiters using Delims.