Enforce requires scopes directive on types rule

[spenserca]

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Description

Add a schema validation that checks all object types for the @requiresScopes directive. This will enforce that anyone who pushes to the federated graph will have to define and apply proper security to their data.

Fixes #2907

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

I've included a spec.ts and test.ts file testing both the valid and invalid cases for the rule.

Test Environment:

• OS:
• @graphql-eslint/...:
• NodeJS:

Checklist:

• I have followed the
  CONTRIBUTING doc and the
  style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests and linter rules pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

Further comments

I'm fairly new to diving deep into graphql and federation, so if there are better alternatives or changes that should be made to this before being accepted, I'm open to discussion.