TESTCOV: Sputnik Factory: DAO Code Metadata

[TrevorJTClarke]

Create test coverage for the following:

Ownership

Adding Code Metadata

• Can add metadata for an existing set of Sputnik DAO Code (code_hash is available only upon storage of contract inside factory)
• Can set the code_hash as default
• Metadata version and other params meet types & spec standards
• Fails to add code metadata if code_hash doesn't exist
• Can remove code metadata if called by owner
• Fails to remove code metadata if metadata by code_hash doesn't exist