Added support for 24:00

## Description and Impact
> Timepicker was able to parse `24:00` when ngModel was changed, but not when the view was changed. This should fix that and add a small test to catch that in the future.

## Deploy Plan
> Does Infrastructure need to know anything special about this deploy? Nope.

## Rollback Plan
* To roll back this change, revert the merge with: `git revert -m 1 MERGE_SHA` and perform another deploy.

## URLs

## QA Plan
> Review [QA Best Practices](https://source.sportngin.com/page/show/1227795-qa-best-practices).

#### Happy Path Scenarios
> Test using the `angular-timepicker` branch on Venue Admin

- [ ] Timepicker should disaply `12:00 am` if `24:00` is entered in the text box

#### Additional Scenarios (Edge Case, Negative, etc.)
* Everything else should work as it did previously.

#### Regression Scenarios