Add Support for non-constant stride field arrays. (STM32) #190

Job	Run time
Build Website	21s
Dry Run Packaging	1m 57s
Build (ubuntu-latest)	31s
Build Examples (espressif/esp)	2m 15s
Build (windows-latest)	1m 58s
Build Examples (gigadevice/gd32)	2m 17s
Build (macos-latest)	36s
Check that stm32 generated code is up to date	48s
Build Examples (microchip/avr)	2m 16s
Unit Test Ports (ubuntu-latest, gigadevice/gd32)	17s
Build Examples (microchip/atsam)	2m 8s
Unit Test Ports (ubuntu-latest, raspberrypi/rp2xxx)	14s
Build Examples (nordic/nrf5x)	2m 2s
Unit Test Ports (ubuntu-latest, stmicro/stm32)	22s
Unit Test UF2 (ubuntu-latest)	17s
Unit Test Ports (windows-latest, gigadevice/gd32)	1m 44s
Build Examples (nxp/lpc)	2m 3s
Unit Test Regz (ubuntu-latest)	18s
Unit Test UF2 (windows-latest)	56s
Unit Test Ports (windows-latest, raspberrypi/rp2xxx)	2m 1s
Unit Test Regz (windows-latest)	1m 24s
Build Examples (stmicro/stm32)	33s
Unit Test Ports (windows-latest, stmicro/stm32)	1m 22s
Unit Test Regz (macos-latest)	36s
Unit Test UF2 (macos-latest)	29s
Build Examples (raspberrypi/rp2xxx)	2m 24s
Unit Test Ports (macos-latest, gigadevice/gd32)	30s
Build Examples (wch/ch32v)	2m 11s
Unit Test Ports (macos-latest, raspberrypi/rp2xxx)	42s
Unit Test Ports (macos-latest, stmicro/stm32)	40s
	36m 12s

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