hp34970-firmware: shortlog

shortlog

Sun, 25 Oct 2020 22:17:15 +0100	David Douard	Add a key mapping table (protocol value vs. raw keycode) and send it draft	changeset \| files
Sun, 25 Oct 2020 22:15:35 +0100	David Douard	Reformat Keypad.cpp draft	changeset \| files
Sun, 25 Oct 2020 22:15:03 +0100	David Douard	Update the main code: extract headers and use a CircularBuffer for key events draft	changeset \| files