Support `@data` template argument

[oformaniuk]

Is your feature request related to a problem? Please describe.
Current implementation does not support @data object to be passed as compiled template argument.

Describe the solution you'd like
Signature of compiled template is extended to accept additional optional data argument.

Is your feature request supported by Handlebarsjs? Please provide details.
https://handlebarsjs.com/api-reference/data-variables.html#level