[RFC] Loop Implementation 

## Need to implement For loop with reactive states

```html
<div :state="{ list: [1, 2, 3] }">
<template :for="i in $state.list">
    <div :text="i"></div>
</template>
<div>
```

#### Output

```html
<div :state="{ list: [1, 2, 3] }">
    <div :text="i">1</div>
    <div :text="i">2</div>
    <div :text="i">3</div>
<div>
```