test_utils: Add C-style enum type for testing
test_utils: Add C-style enum type for testing

novifinancial/serde-reflection,novifinancial/serde-reflection,novifinancial/serde-reflection,novifinancial/serde-reflection,novifinancial/serde-reflection,novifinancial/serde-reflection,novifinancial/serde-reflection,novifinancial/serde-reflection,novifinancial/serde-reflection