[6/n] add input-output and ref-vs-inline-type-change test cases

[sunshowers]

Introduce these cases now to see how the next commit changes them.

Because of #13 this thankfully results in very little churn.

[ahl]

I'm surprised that this is unknown? or is this expected.

[sunshowers]

it comes from

drift/src/schema.rs

Lines 516 to 525 in df255a4

	_ => self.schema_push_change(
	dry_run,
	"schema types changed",
	&old_schema_type,
	&new_schema_type,
	comparison,
	ChangeClass::Incompatible,
	ChangeDetails::UnknownDifference,
	),
	}

which is from your initial commit :) definitely space to improve this in the future.