[FEATURE] add matchers that support kotlinx.html DSL

[christian-draeger]

I think it would be really awesome if skrape{it} would provide matchers that are using the kotlinx.html DSL
To compare the inner html of an selected element (picked by skrapeit) with an expected markup (defined by html dsl).

Describe the solution you'd like

htmlDocument {
    div {
        withClass = "foo" 
        find First {
            // the selected html by skrapeit could be something like `<div class="bar foo" id="xx">`
            html toBe div("foo bar") { id = "xx" } 
        } 
    } 
} 

Additional context
One tricky part will be to unify the html somehow. For instance <div id="xx" class="foo bar" > has to match <div class="bar foo" id="xx">