Release mega-20200328

Changes in mega-20200328 (since mega-20200310):

Bartlomiej Zimon (2):
      [SysVars] small optimization
      [SysVars] concat->String()

Boris Krivonog (30):
      Initial commit of the Mitsibutshi HP integration.
      Added device values.
      first contact
      push on change
      push on change
      unified code read and update
      added update ...
      set temperature ...
      write all parameters
      logging ...
      logs fixed
      if update was successful, update settings immediatelly
      renamed to settings
      don't read during write, don't request info we don't care about ...
      Added info about which specific commit used.
      reverted changes made in other files
      reverted changes made in other files
      reverted changes made in other files
      fixed compile time warnings
      Renamed to 092 plugin.
      Rewrote communication part, removed delays from code, optimised handling and storing of data ...
      Write re-enabled
      Renamed to 093 plugin.
      Renamed to 093 plugin.
      Improved write operations
      Fixed build when debug is disabled
      Make sure to break out of switch-case.
      Handle only "MHP" commands
      adding documentation ...
      adding documentation ...

Gijs Noorlander (47):
      [P091] Move P165 SerSwitch from playground to main repository
      [P091] Add documentation
      [P091 SerSwitch] Update to use latest sources of enesbcs
      Minify the JS code + store in flash
      [Docs] Add stub for documentation of P093 - Mitsubishi Heat Pump
      [SC16IS752] Add Library
      [SC16IS752 lib] Update manifest to register as PIO library
      [ESPEasySerial] Update manifest to mark SC16IS752 dependency
      [SC16IS752] Use I2C-UART bridge in ESPEasySerial (ESP8266)
      [SC16IS752] Extend Serial Helper to support I2C UART
      Fix warnings in ccronexpr test code
      [Serial] Mark plugins using serial as device type serial
      [I2C serial] Disable debugging
      [Docs] Add port type to plugin substitutions
      [Docs] Mark all plugins using Serial as port type
      [I2C UART] Speed up reading from I2C Serial
      [I2C UART] Cache FIFO available to speed up reading
      [I2C UART] Limit calls to serial.available()
      [code analytics] Use PVS studio
      [ESP32]  Add SDS011 support for ESP32
      [Task] Start scheduled runs again after (re)enableTask command
      [I2C UART] Mark ESPEasySerial library as v2.0.0
      [ESP32] Make sure to include the version tag in ESPEasySerial libdeb
      [I2C] Add I2C frequency setting
      ESPEasy Status LED is not working on ESP32 with buildin LED (#2940)
      Pulse Counter must retain its values after reboot (#2268)
      [Build] Disable test_ESP8266_4M1M_VCC_MDNS_SD due to max sketch size
      [JSON] Fix JSON output of values for single task
      [SerialProxy] Add regexp filtering
      [Lib] Add RegExp lib
      [Serial Proxy] Add regexp filtering using captures
      [Serial Proxy] Add extra filter parameters
      [Serial Proxy] Move plugin specific struct to .h/.cpp to support captures
      [Serial Proxy] Use capture filtering
      [Web] Make command field on Tools page much wider
      [Serial Proxy] Only check on valid filter rules
      [SysVar] Add extra system variables to get build info
      [Serial Proxy] Fix check in empty string test
      Add generic hexToUL functions
      [WiFi] Start webserver before starting wifi (long delay to receive 1st byte)
      [Serial Log] Keep a bit more free memory when processing serial log
      [Serial Proxy] Don't process on empty regexp
      Check if plugin uses formula before trying to process formula
      [ESP32] Fix crash in startup connecting to WiFi (#2960 )
      [SGP30] Fix output all values to controller
      [PIO] feature/stage no longer available for building latest core libs
      [PIO] Use platform_packages for all core libs supporting those

Grovkillen (8):
      [rules] commented out old upload html
      [rules] forms uncommented (needed for rules set)
      [rules] removed the "onSubmit" event
      [rules] narrowed scope of form (to not trigger onChange if btn clicked)
      [rules] file upload instead of form upload
      [rules] removed commented code
      [rules] size is updated when saved
      [rules] td-er talked me into it... thanks mate!

Michael Schröder (1):
      Fix double-Ok at command output

TD-er (5):
      Start of implementing SC16IS752 support
      Fix resetpulsecounter for P003_Pulse (#2710)
      [Blynk] Fix building C015 Blynk controller
      Fix ArduinoIDE Build error due to missing include
      automatically updated release notes for mega-20200328

borisk (6):
      Updating documentation
      Updating documentation
      Updating documentation
      Add as part of testing plugins ...
      Restructured docs a bit so its easier to follow
      updated docs

tonhuisman (2):
      [P023] Fix for text overflowing onto next line(s)
      Added condition for 64x48 and rotated combined