Don't use relative imports like `../foo.h` as those depend on the
relative position of both files. Rather than that use imports relative
to the `src` directory, which explicitly is part of the include
directories.

* add basic metronome app

* add bpb, tap to bpm, update widgets

* use event pressed for bpm tap

* move case statement break to the right place

* narrow bpm selection range, override touch events

* fix arc knob style

* re-enable sleeping in destructor

More memory for freertos heap and timer stack
Fix warning in watchface
Fix number of bytes read by cst816
Debug app to show freertos tasks
Increased the number of bytes of the twi write buffer

# Conflicts:
#	src/CMakeLists.txt
#	src/displayapp/Apps.h
#	src/displayapp/DisplayApp.cpp
#	src/displayapp/DisplayApp.h
#	src/displayapp/lv_pinetime_theme.c
#	src/displayapp/screens/ApplicationList.cpp
#	src/drivers/TwiMaster.cpp
#	src/systemtask/SystemTask.h

new navigation
add some color to the apps
redesign menus
new settings menu
new quick settings
code clean up
size reduction by converting navigation images to font
and more...