add props getter to the Component class

[one-more]

There should be universal mechanism to get component's props:

in markup:

<x-clock id="clock" data-type="digital" ></x-clock>

in code:

import {Component} from '@micro-frontends/core'

export class XClock extends Component {
    static getName() {
        return 'x-clock'
    }

    render() {
        const id = this.props.id;
        if (this.props.type == 'digital') {
            //render digital clock
        } else {
            //render analog clock
        }
    }
}