ctx.root_config not accessible in operation instance template context.

[jsoverson]

Describe the bug
Using {{ctx.root_config.XXX}} in an operation instance with block results in an error.

To Reproduce

Invoke/run something with an operation instance that has configuration like:

---
kind: wick/component@v1
name: test
component:
  kind: wick/component/composite@v1
  with: 
    - name: token
      type: string
  operations:
    - name: mail_send
      uses:
        - name: CONFIG
          operation: core::sender
          with: 
            output:
              token: '{{ ctx.root_config.token }}'

Expected behavior
The op config gets rendered with the root token.

Actual behavior
Error occurs, complaining about unknown index

Environment:

• OS: mac
• Architecture: m1
• Build Version: head

[jsoverson]

Fixed via #335