Component inheritance chain

[aknysh]

what

• Add component inheritance chain (unlimited levels)
• Add inheritance section to component outputs
• Show inheritance chain when executing atmos commands (Inheritance: test/test-component-override-2 -> test/test-component-override -> test/test-component)

why

• Allow to inherit config from more than one component, e.g. Component A inherits Component B which in turn inherits Component C (each one can override any attributes)
• Reuse component config
• DRY config

related

• Closes Extend Component to include Catalog #82

test

atmos terraform plan test/test-component-override-2 -s tenant1-ue2-dev

Command info:
Terraform binary: /usr/local/bin/terraform
Terraform command: plan
Arguments and flags: []
Component: test/test-component-override-2
Base component: test/test-component
Inheritance: test/test-component-override-2 -> test/test-component-override -> test/test-component
Stack: tenant1/ue2/dev

test/test-component-override-2:
  component: test/test-component
  inheritance:
  - test/test-component-override
  - test/test-component