Allow military time with colon to be used for scheduling standups

[billneff79]

e.g. schedule standup 13:00 will schedule it for 1:00 pm. Using am/pm still works - this is just added functionality

[codecov-io]

Codecov Report

Merging #159 into develop will decrease coverage by <.01%.
The diff coverage is 83.33%.

@@             Coverage Diff             @@
##           develop     #159      +/-   ##
===========================================
- Coverage    86.44%   86.43%   -0.01%     
===========================================
  Files           58       59       +1     
  Lines         1372     1379       +7     
  Branches       181      182       +1     
===========================================
+ Hits          1186     1192       +6     
- Misses         186      187       +1

Impacted Files	Coverage Δ
lib/helpers/time.js	98.43% <100%> (ø)	⬆️
features/steps/helper-time.js	88.09% <80%> (-1.1%)	⬇️
models/index.js	92.85% <0%> (ø)
lib/helpers/reports/transformers/index.js	100% <0%> (+7.14%)	⬆️

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