Allow the suffix to be manually set

[jakeprem]

Sometimes the automatically generated suffix might not match what we want.

For example SomeSchema.Nested by default generates as all_nested rather than all_some_schema_nested. This update will let us pass suffix: "some_schema_nested" to manually set this.

Open to feedback on how to approach this, but the PR was simple enough to go ahead and do as a suggestion (and solves for my use case)