VAR-57 | Add slot_size and minPeriod to reservation select

[midori0507]

• Refactor Timeslot reducer / functionalities.
• User now only able to clear the selection from clicking the clear button
• Add various unit tests / time utils.
• Populate time slot when select with minPeriod if resource minPeriod exist
• Add info about min period on resource page

[codecov-io]

Codecov Report

Merging #925 into develop will increase coverage by 0.15%.
The diff coverage is 95.45%.

@@             Coverage Diff             @@
##           develop     #925      +/-   ##
===========================================
+ Coverage    91.61%   91.77%   +0.15%     
===========================================
  Files          217      217              
  Lines         2828     2846      +18     
  Branches       496      499       +3     
===========================================
+ Hits          2591     2612      +21     
+ Misses         208      207       -1     
+ Partials        29       27       -2

Impacted Files	Coverage Δ
app/shared/form-fields/ReservationTimeControls.js	100% <ø> (ø)	⬆️
app/utils/fixtures/Resource.js	100% <ø> (ø)	⬆️
...red/modals/reservation-info/ReservationEditForm.js	97.56% <ø> (ø)	⬆️
...servation-controls/ReservationControlsContainer.js	69.23% <100%> (ø)	⬆️
...eservation-calendar/reservationCalendarSelector.js	100% <100%> (ø)	⬆️
...ource/reservation-calendar/time-slots/TimeSlots.js	86.58% <100%> (+4.65%)	⬆️
app/utils/resourceUtils.js	99% <100%> (+0.05%)	⬆️
app/state/reducers/ui/reservationsReducer.js	91.66% <100%> (+1.28%)	⬆️
app/utils/timeUtils.js	100% <100%> (ø)	⬆️
app/constants/SlotConstants.js	100% <100%> (ø)	⬆️
... and 3 more

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