2022q2 release

This release covers everything from 2022-04-01 and has been tested with avr-gcc
v11.2.0 from upstream and arm-none-eabi-gcc 10.3-2021.10 from Arm.

Breaking changes:

• None.

Features:

• Custom OpenOCD binary path.
• IRQ handlers for RP2040.
• Expose transmission complete flag on STM32 UART.
• Half transfer handler for STM32 DMA.
• Timer SlaveModeTrigger::Internal0/Internal3 for STM32F4.
• UI Button group refactoring.
• MovingAverage filter refactoring.
• Support for std::chrono in STM32 timer API.

Integrated Projects:

• ETL upgraded to v20.29.3.
• CrashCatcher updated to latest version.

Fixes:

• Fix STM32F7 linker script issue causing memory corruption on some devices.
• STM32H7 RCC clock output.
• CAN system clock frequencies for Nucleo-F446RE/Nucleo-F446ZE boards.
• Cortex-M ITM when buffer.tx option not set.
• Rcc::disable() on STM32 disabling unrelated clocks.
• Fix GpioSampler difference computation.
• Fix missing DMAable capability for DTCM RAM on STM32F7.

New development boards:

• Support for revision B-02 of the DISCO-F469NI development board as
  modm:disco-f469ni:b-02.

New device drivers:

• MAX31855 thermocouple-to-digital converter as modm:driver:max31855
• ADS101X ADC as modm:driver:ads101x
• MS5611 pressure sensor as modm:driver:ms5611

Known bugs:

• Cannot set breakpoints on specific lines in debug profile. See #777.
• C++20 is not fully implemented by GCC10 yet, however modm does not use all
  features yet anyways. See #326.
• STM32F7: D-Cache not enabled by default. See #485.
• lbuild build and lbuild clean do not remove all previously generated files
  when the configuration changes. See #285.
• Generating modm on Windows creates paths with \ that are not compatible with
  Unix. See #310.
• arm-none-eabi-gdb TUI and GDBGUI interfaces are not supported on Windows.
  See #591.

Many thanks to all our contributors.
A special thank you to our first timers 🎉:

• Christopher Durand (@chris-durand)
• Jonas Kazem Andersen (@JKazem) 🎉
• Niklas Hauser (@salkinium)
• Nikolay Semenov (@cocasema) 🎉
• Raphael Lehmann (@rleh)
• Rasmus Kleist (@rasmuskleist)
• Sarah Vilete (@sarahvilete) 🎉
• Sascha Schade (@strongly-typed)
• Sebastian Birke (@se-bi)
• Sebastian Tibor Bakonyvari (@twast92) 🎉
• Thomas Rush (@tarush53) 🎉
• Thomas Sommer (@TomSaw)
• Vivien Henry (@lukh)
• xgzeng 🎉

PR #875 -> 2022q2.

Detailed changelog

2022-06-31: Add support for std::chrono in STM32 timer API

PR #873 -> c949daf.

2022-06-08: MovingAverage filter refactoring

And reset() function added.

PR #872 -> 7b5827f.
Tested by @TomSaw.

2022-05-31: Fix Cortex-M ITM

ITM was previously not working when buffer.tx option was not set.

PR #866 -> 90774be.
Tested in hardware by @xgzeng.

2022-05-21: UI Button group refactoring

PR #864 -> 55d5911.
Tested by @TomSaw.

2022-05-11: Add support for revision b-02 of DISCO-F469NI development board

PR #862 -> 4885c53.
Tested in hardware by @se-bi, @rleh and @salkinium.

2022-05-08: Fix missing CAN system clock frequencies for Nucleo-F446RE/Nucleo-F446ZE boards

PR #861 -> 87b6405.
Tested in hardware by @strongly-typed.

2022-05-07: Add Timer SlaveModeTrigger::Internal0/Internal3 for STM32F4

PR #859 -> c7bd876.

2022-05-04: Add half transfer handler for STM32 DMA

PR #858 -> dab6c79.

2022-05-03: Add MS5611 pressure sensor driver

PR #851 -> ab9bcee.
Tested in hardware by @rasmuskleist.

2022-05-01: Expose transmission complete flag on STM32 UART

PR #856 -> 0e3d280.
Tested in hardware by @strongly-typed.

2022-05-01: Add ADS101X ADC driver

PR #854 -> 596eafa.
Tested in hardware by @JKazem.

2022-04-30: Fix STM32H7 RCC clock output

PR #853 -> 6e7c12f.
Tested in hardware by @chris-durand.

2022-04-22: Add MAX31855 thermocouple-to-digital converter driver

PR #850 -> 2e34b11.
Tested in hardware by @rasmuskleist / @sarahvilete.

2022-04-18: Implement IRQ handlers for RP2040

PR #848 -> 599e0ba.
Tested in hardware by @cocasema.

2022-04-13: Add support for custom OpenOCD binary path

PR #846 -> 98a2483.
Tested in hardware by @cocasema.