basic map walk timer
Introduce walk timer basic implementation

Opens a map with current location
start basic timer set to 20secs
Button to stop timer
Text change depending on timer's state

Work in collaboration between Nabil & Sruthi
Fixing timer, Adding options for manual and destination based timers
Walk timer Iteration 2

Adding manual timer (timer set by user entered value)
Allow only numbers to set timer
Calculate timer using walking time to the destination
countdown timer
merging master
finalized code
Merge branch 'master' into walkTimer
all changes
all merges
Working version of refactored timer