"L" function in the text template rendering system should support parametric text

[hikalkan]

For a translation like Hello {0}, how are you?, we need to pass the {0} as a parameter to the L function. Currently, it is no possible.

A good implementation can be like that:

{{ L "HelloKey" "John" }}

or (using a model property)

{{ L "HelloKey" model.name }}

which produces Hello John, how are you?

If it can be implemented, also update the document.