* Added nRF5340 driver support for Clock, Internal Flash (NVMC), GPIO, SPU, OTP, UART, SPI, QSPI and IPC.
* Added support for updating the network core (Sign using "--id 2")
* Cleanup the nRF52 port
* Improved external QSPI and internal Flash tests and logging.
* Improved internal printf support for formatter length.
* HiFive1 HAL Support for PLL Clock, UART, RTC and Flash QSPI Erase/Write.
* HiFive1 update demo application for accepting firmware updates over UART.
* Added test-update-server application for pushing firmware image over UART.
* Fixes for building with `make SIGN=ECC256`.
* Improvements to wolfCrypt `user_settings.h`.
* General library cleanup (license headers and formatting)
* Updated the wolfSSL submodule to latest.
* Documentation updates including new `Targets.md` section for hardare instructions.