New dice-rolling app: InfiniDice! (#1326)

Add new App `Dice.h` to randomly roll the dice(s).
The number of dice can range from 1-9 (default 1), and the sides can
range from d2-d99 (default d2).

To have a haptic feedback we make Dice vibrate on roll.

Regarding the use of C++ `<random>` library:
There are known problems with `rand()` and `srand()` (see https://en.cppreference.com/w/cpp/numeric/random/rand)
and the `<random>` library is preferred for this reason. The function used from
`<random>` also avoids a very rare bias that would occur using `rand()` and modulo,
when `RAND_MAX` is not a multiple of `d` and the initially generated number falls in
the last "short" segment. This commit also updates the seed to derive entropy
(via `seed_seq`) from a mix of the system tick count and the x,y,z components of the
PineTime motion controller -- taking inspiration from and with credit to @w4tsn
(https://github.com/InfiniTimeOrg/InfiniTime/pull/1199)

Thanks for suggestions:
* in Dice, when rolling 1d2, also show "HEADS" or "TAILS" -- suggestion by @medeyko
* ui adjustments and result realignment -- suggestion by @Boteium

---------

Co-authored-by: NeroBurner <pyro4hell@gmail.com>
Co-authored-by: Riku Isokoski <riksu9000@gmail.com>
Co-authored-by: Paul Weiß <45500341+Poohl@users.noreply.github.com>
Co-authored-by: FintasticMan <finlay.neon.kid@gmail.com>

src/CMakeLists.txt

@@ -390,6 +390,7 @@ list(APPEND SOURCE_FILES
         displayapp/screens/BatteryInfo.cpp
         displayapp/screens/Steps.cpp
         displayapp/screens/Timer.cpp
+        displayapp/screens/Dice.cpp
         displayapp/screens/PassKey.cpp
         displayapp/screens/Error.cpp
         displayapp/screens/Alarm.cpp
@@ -609,6 +610,7 @@ set(INCLUDE_FILES
         displayapp/screens/Metronome.h
         displayapp/screens/Motion.h
         displayapp/screens/Timer.h
+        displayapp/screens/Dice.h
         displayapp/screens/Alarm.h
         displayapp/Colors.h
         displayapp/widgets/Counter.h