Add enum for Inspect 0x09 payload

[tolauwae]

Allows testing the reversal of primitives. Example program:

const reverse = framework.suite('Test Reverse interface');
reverse.testee('emulator[:8530]', new EmulatorSpecification(8530));

reverse.test({
    title: 'Test snapshot',
    program: 'test/blink.wast',
    steps: [{
        title: 'Test IO snapshot',
        instruction: {kind: Kind.Request, value: Message.inspect([Inspect.io])},
        expected: [{
            'io': {
                kind: 'comparison', value: (state: State) => state.io?.length === 0
            }
        }],
    },
        new Invoker('read', [WASM.i32(15)], WASM.i32(0)),
        new Invoker('write', [WASM.i32(15), WASM.i32(1)], undefined),
        new Invoker('read', [WASM.i32(15)], WASM.i32(1))
    ]
})