Record start and stop time

[ruthmoog]

Meta data for a walk should include the start time and end time:

^{↑ form fields when submitting Bee Walk data}

• The start and end time should be recorded in the local storage
• Walker should click a button to start their walk
• Could potentially be combined with GPS to end the timer when walker crosses the point where the final section of their walk ends
• The start and end time should be displayed so the walker knows it's being recorded

[ruthmoog]

• Added button that saves the hh:dd in local storage

[ruthmoog]

• Add start/ stop buttons dynamically
• Display the start date and time
• Display the end time