Rework Cloud log start/end times, and update documentation

[uzlonewolf]

I noticed the Cloud documentation calls for 13-digit timestamps, however I was sending 10-digit UNIX timestamps. It seemed to work fine, but I decided it would be better to match the official documentation. So it now sends a 13-digit int(time.time() * 1000). I also reworked it so you can pass a negative number for that many days ago (i.e. -2 means 2 days ago) and added automatic server time offset compensation.

Documentation for the above as well as the Zigbee Gateway example were added.

[jasonacox]

Thanks @uzlonewolf ! I'm going to work on a PyPI release.

[jasonacox]

I released this as v1.9.0 - Thanks @uzlonewolf!

One minor issue I see... During my testing, I'm seeing a random "0" show up during wizard:

TinyTuya Setup Wizard [1.9.0]

    Existing settings:
        API Key=abcdefghijklmnopqrstuv 
        Secret=1234567890abcdef1234567890abcdef1
        DeviceID=123abc4567890abcdef12
        Region=us

    Use existing credentials (Y/n): 
0


Device Listing

The culprit is the Cloud init call due to _gettoken():

log.warning(self.server_time_offset)

Since it is a warning, it is showing up under normal conditions so I'll drop it to debug:

log.debug("server_time_offset: %r", self.server_time_offset)

[uzlonewolf]

Ah, oops, I had intended to delete that line but it would seem I forgot. Thanks for the catch and fix.