regz: generate enums attached to parent (#404) #300

Job	Run time
Build Website	19s
Build (ubuntu-latest)	27s
Build Examples (espressif/esp)	2m 17s
Build Examples (gigadevice/gd32)	2m 19s
Build (windows-latest)	1m 21s
Build Examples (microchip/avr)	2m 11s
Dry Run Packaging	1m 49s
Build (macos-latest)	24s
Check that stm32 generated code is up to date	1m 8s
Build Examples (microchip/atsam)	1m 55s
Build Examples (nordic/nrf5x)	2m 0s
Unit Test Regz (ubuntu-latest)	28s
Build Examples (nxp/lpc)	2m 0s
Unit Test UF2 (ubuntu-latest)	18s
Unit Test Regz (windows-latest)	1m 22s
Build Examples (stmicro/stm32)	28s
Unit Test Ports (ubuntu-latest, gigadevice/gd32)	22s
Unit Test UF2 (windows-latest)	1m 21s
Unit Test Regz (macos-latest)	30s
Build Examples (raspberrypi/rp2xxx)	2m 37s
Unit Test Ports (ubuntu-latest, raspberrypi/rp2xxx)	26s
Unit Test UF2 (macos-latest)	35s
Build Examples (wch/ch32v)	2m 16s
Unit Test Ports (ubuntu-latest, stmicro/stm32)	14s
Unit Test Ports (windows-latest, gigadevice/gd32)	58s
Unit Test Ports (windows-latest, raspberrypi/rp2xxx)	1m 14s
Unit Test Ports (windows-latest, stmicro/stm32)	1m 21s
Unit Test Ports (macos-latest, gigadevice/gd32)	33s
Unit Test Ports (macos-latest, raspberrypi/rp2xxx)	36s
Unit Test Ports (macos-latest, stmicro/stm32)	36s
	34m 25s

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