DBus interface

Why:

• KClock needs to communicate with PowerDevil for alarm wake up.PowerDevil MR
• KClock Widget is a separate process and needs a way to retrieve information about KClock.
• Other applications in the future can utilize KClock's functions to do their own things.

When:

This is a super WIP thing since it requires other MRs to be merged first.

EDITED: August, 9, 2020

• merged alarmwaiting MR into this MR, acts as a fall back method when the powerdevil isn't present.
• remove DBus adapter header, xml.
• merged master branch (separate alarmModel from alarms class source file, removed Android CI/CD)