Add platform and sensors for Vultr VPS (#9928)

* Initial commit of Vultr components

Have a working Vultr hub and binary sensor which pulls down the
following attributes of your VPS:
 - Date created
 - Subscription id (server id)
 - Cost per month (in US$)
 - Operating System installed
 - IPv4 address
 - label (human readable name)
 - region
 - number of vcpus
 - which storage package chosen
 - IPV6 address (if applicable)
 - RAM amount

Working next on sensor and then testing / coverage.

* Added Vultr sensor for pending charges and current bandwidth. Refactored binary_sensor and hub too

* Corrected is_on bases

* Added basic tests for Vultr binary & platform

* Updated require files

* Changing test fixture to highlight different cases

* Written basic test for sensor.vultr

* Resolved linting errors and broken test

* Increase test coverage and corrected docs

* Resolved hound issues

* Revert back negative binary test

* Another hound resolve

* Refactoring and adding is switch, moving over to vultr branch

* Made Vultr components more resiliant to invalid configs

* Added negetive test for vultr binary sensor

* Added better testing of vultr sensor

* Resolved vultr platform test affecting subsequent vultr tests

* Moving VULTR components to single use design

* Added in sensor name config

* Added missing sensors var

* Resolved init data setting of sensors, added in name conf to switch

* Made the Vultr component more resiliant to startup failure with better alerting

* Various Vultr component changes

- Refactored sensor, binary_sensor, and switch to reference one subscription
- Renamed CURRENT_BANDWIDTH_GB monitored condition to CURRENT_BANDWIDTH_USED
- Improved test coverage

* Resolved local tox linting issue

* Added more testing for Vultr switch

* Improved test coverage for Vultr components

* Made PR comment changes to vultr binary sensor

* Made PR comment changes to Vultr sensor

* resolved PR comments for Vultr Switch

* Resolved vultr sensor name and improved tests

* Improved Vultr switch testing (default name formatting)

* Removed vultr hub failure checking

script/gen_requirements_all.py

@@ -82,7 +82,8 @@ TEST_REQUIREMENTS = (
     'warrant',
     'yahoo-finance',
     'pythonwhois',
-    'wakeonlan'
+    'wakeonlan',
+    'vultr'
 )
 
 IGNORE_PACKAGES = (