✨ : HCL parser

[juwit]

Is your feature request related to a problem? Please describe.
We should parse HCL code from modules, to be able to automatically import variables/outputs in the future.

Describe the solution you'd like
Use some kind of syntax analyser (antlr).

Describe alternatives you've considered
regex based-parsing seems too complex for this task, and not robust enough

Additional context
N/A