Localize PowerFlow Animation

This reverts commit fb66a20.

* TeslaCloud class

* Placeholder TeslaCloud class

* Unpack API dictionary

* Add functions and tests

* Add cache and setup

* Remove TODOs

* Add cloud setup to CLI

* Fix log bug

* Add teslapy to tests

* CI test remove py 3.5

* Remove sample data

* Add file types

* Add cloud mode

* Add missing data

* Fix bug for sites without inverters

* Add test proxy using cloud and local

* Fix hash issue

* Build t31

* Fix style

* Fix grid services data mapping which relates to VPP events

* Build t32

* Unpin pypowerwall library

* Fix backup reserve percent scaling

* Fix API mismatch

* Fix percentage_charged

* Prep for v0.7.0

* Minor fixes for consistency

* Fix exception when vitals is None

* Add get_time_remaining()

* Remove vitals mock data

* Fix vitals response

* Add siteid selection to setup

* Update setup install_requires

* Fix duplicate line

* Remove test servers

* Update docs for v0.7.0

* Add simulated vitals

* Remove poll() cache

* Add counter param to SITE_DATA call

* Revise handling of siteid selection

* Stagger TTL to reduce rate limit

* Infinite loop to keep container running

* Allow no cache option with pwcacheexpire = 0

* Add stats for cloud mode

* Startup details logging

* Fix local log details

* Limit cloud API requests to single thread

* Reduce http timeout and remove retries

* Change elapsed time measurements to monotonic clock

* Fix exceptions and invalid return data

* Add _site_api() to broker  calls

* Revise debug log order, fix sites exception

* Updates to documentation and error logging

* Proxy t35

* Counter param starts at 1

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Co-authored-by: Michael Birse <michael@birse.com.au>