New API

[F0rsaken]

Add new API along side current class based one. It would similar to Vue composables or React hooks, where you would delcare all in a special init function.

Example:

export defineComponent((ctx) => {
    const param = useDataParam('param');

    ctx.$on('click', () => {
        // ...
    })

    onInit(() => {
        // called on init
        console.log(param.value)
    })

    onBeforeDestroy(() => {
        // ...
    })

    onDestroy(() => {
        // ...
    })
})