* Update documentation for signing with `--no-sign`, as the key argument should not be supplied.
* Recommend `make keysclean` instead of distclean on keys mismatch.
* Renesas headings/readme link and white-space.
* Fix issues with keygen tool import `-i` feature.
* Fix issue with key import incorrectly assuming key size.
* Add support for importing an ECC key with header.
* Fix for missing ECC key free.
* Refactor keygen tool to use utility function to get key size
* Fix to handle encoded ECC public keys when using `--sha-only` or manual sign
* Added Aarch64 boot/startup support
* Added configuration templates for Raspberry Pi 3 and Xilinx ZynqMP UltraScale+
* Added Xilinx Zynq QSPI bare-metal Driver
* Added `NO_XIP` option for full `ext_flash_*` API on all partitions
* Added Xilinx SDK Project Template
* Added support for DTS image partitions
* Added wolfBoot signing tool in Native C (`tools/keytools/sign.c`).
* Added libwolfboot functions `int wolfBoot_fallback_is_possible(void);` and `int wolfBoot_dualboot_candidate(void);`
* Performance improvement to only hash application firmware image once