Add support for Nucleo-H533RE board

[manderson253]

Hello,
Is it possible to add the STM32H533RE and the CMSIS-STM32H5 framework to PlatformIO?
Dev board documentation:
https://www.st.com/en/evaluation-tools/nucleo-h533re.html#documentation
https://www.st.com/resource/en/schematic_pack/mb1814-h533re-c02-schematic.pdf

MCU documentation:
https://www.st.com/resource/en/datasheet/stm32h533re.pdf
https://www.st.com/resource/en/reference_manual/rm0481-stm32h52333xx-stm32h56263xx-and-stm32h573xx-armbased-32bit-mcus-stmicroelectronics.pdf

CMSIS-stm32h5:
https://github.com/STMicroelectronics/STM32CubeH5/tree/main

Thank you!