refactor: rewrite tags and rendering system

[Kocal]

The automatic behavior is removed because evaluate Vue files created too many problems: #41, #49, #47, #19, #13, #12, #4, #7.

Now you will need to explicitly declare each props/data/computed your component has.

Tags

Tag @vue is removed in favor of following tags:

• @vue-prop
• @vue-data
• @vue-computed

Each of those tags have the same behaviour than @param.
You can specify a name, a description, a type, and a default value.

<script>
/**
 * @vue-prop {Number} [initialCounter=1] - Initial counter value 
 */
export default {
  props: {
    initialCounter: {
      type: Number,
      default: 1
    }
  }
}
</script>

Renderer

The renderer system will be rewritten to be more flexible, and allow support for every JSDoc templates.

For each JSDoc templates which exists, we need to write a special renderer that will be used for this template only.

Actually, there is only a default renderer, that works with... the default JSDoc template.