SPK infra should be able to import variables from a directory path as a parent

[NathanielRose]

As a: Developer I want: To include common variables from an imported folder path So that: I can include vars from outside my parent folder for a spk deployment. Describe the solution you'd like:

Acceptance Criteria:

• TBD

Describe alternatives you've considered:

• Another alternative would be to have multi-layer inheritance for the variable. This may be a solution to this request?

Additional context: Partner Request

Does this require updates to documentation?: Yes