1. bluedroid: use standard function pointer define. 2. blufi: Change ESP_BD_ADDR_LEN into ESP_BLUFI_BD_ADDR_LEN 3. doc/sphinx_known_warnings: Remove fixed parts.
2. add esp API for HID 3. add PM config for HID 4. add HID device demo Closes https://github.com/espressif/esp-idf/issues/5311 Closes https://github.com/espressif/esp-idf/issues/5635 Merges https://github.com/espressif/esp-idf/pull/3425