NOT Infinitime 1.15.0

This was my version of 1.15.0 when Infinitime was still version 1.14.1

Changes from the upstream

Added the calendar app from this pr, with minor changes from my branch
Removed the paddle, infinipaint, and metronome apps.
Removed the Infineat, terminal, and CasioStyleG7710 watch faces.
Alarm app changes: Increase the size of the info button, change max rings until timeout from 60 to 30, and show time til next alarm even if alarm is off.
Fixed a brightness bug and added smooth transitions between backlight bright level changes.
Updated the music apps design from this PR, and added my changes in my branch here.
Added heart rate measurements in the background from this PR
Added weather to the digital watch face from this PR
Open the battery screen when put on the charger, open the current time watch face when taken off the charger in this PR
Add dynamic coloring to the battery icon on the digital watch face to represent the current charge level in this PR.
Change the side button double click action to open the Navigation app
Remove the heart rate icon from the digital watch face when not in use in this PR
Added a widget for the timer's time remaining on the digital watch face if a timer is running
Add a calculator app in this PR

Changed the order of the apps and settings
Added the NPM/NodeJS package management directories & files: node_modules, package-lock.json, package.json to the .gitignore