htag big changes

htag is entered in its 0.90 version ;-)

The 1.0 will be the new major release soon. I've made some big "docs update" in htad docs, and htagapk ...

All old runners (BrowserHTTP, BrowserStarletteWS, ...) are deprecated, and will be removed in 1.0. There is now only one, which can emulate all features, with no dependancies, only pure python (no more starlette, uvicorn, tornado for specialized ones)

Now, I'll need to polish the api, and make the docs ...