[FEATURE] Support using dependency blocks from Terragrunt to calculate run order

[maulik13]

Is your feature request related to a problem? Please describe. At present terramate list --run-order does not take in to account Terragrunt dependency blocks.

Describe the solution you'd like Terramate should use dependency blocks from Terragrunt configuration to calculate the run-order. Terramate already reads dependency for change detection.

Describe alternatives you've considered We are using tags and after attributes. However, these need to be maintained manually at present across many stacks.