Add sync API.

[SamDanielThangarajan]

Is your feature request related to a problem? Please describe.
All the apis are not async apis, its sometimes simple to have a normal sync functions.

Describe the solution you'd like
Created a async to sync bridge

Describe alternatives you've considered

Additional context

Example:

@attrs.define
class AsyncBridge:
    _event_loop: asyncio.BaseEventLoop = attrs.field(init=False)
    _thread: threading.Thread = attrs.field(init=False)

    def __attrs_post_init__(self):
        self._event_loop = asyncio.new_event_loop()
        self._thread = threading.Thread(target=self._event_loop.run_forever)
        self._thread.start()

    def execute(self, underlying, timeout=None):
        future = asyncio.run_coroutine_threadsafe(underlying, self._event_loop)
        return future.result(timeout=timeout)

    def stop(self):
        self._event_loop.call_soon_threadsafe(self._event_loop.stop)
        self._thread.join()