Fix #7381 (Calendar incorrect time validations); combine into 1 validation method

[polushinmk]

###Defect Fixes
#7381

I suggest to combine validateHour, validateMinute and validateSecond into 1 validation method = validateTime
this should fix all incorrect time validations

[thomasesh]

This doesn't take into account if the hour is in 12 format. The minDate and maxDate are in 24 hour format.

I am using both date and time selection.

Here is my attempt to fix: (this is in .js, not .ts format (sorry))

Change validateTime to take " this.pm" argument everywhere in your commit.
change validateTime to be:

Calendar.prototype.validateTime = function (hour, minute, second, pm) {
       var value = this.value;
       var convertedHour = this.convertTo24Hour(hour, pm);
       if (this.isRangeSelection()) {
           value = this.value[1] || this.value[0];
       }
       if (this.isMultipleSelection()) {
           value = this.value[this.value.length - 1];
       }
       var valueDateString = value ? value.toDateString() : null;
       if (this.minDate && valueDateString && this.minDate.toDateString() === valueDateString) {
           if (this.minDate.getHours() > convertedHour) {
               return false;
           }
           if (this.minDate.getHours() === convertedHour) {
               if (this.minDate.getMinutes() > minute) {
                   return false;
               }
               if (this.minDate.getMinutes() === minute) {
                   if (this.minDate.getSeconds() > second) {
                       return false;
                   }
               }
           }
       }

       if (this.maxDate && valueDateString && this.maxDate.toDateString() === valueDateString) {
           if (this.maxDate.getHours() < convertedHour) {
               return false;
           }
           if (this.maxDate.getHours() === convertedHour) {
               if (this.maxDate.getMinutes() < minute) {
                   return false;
               }
               if (this.maxDate.getMinutes() === minute) {
                 if (this.maxDate.getSeconds() < second) {
                     return false;
                 }
               }
           }
       }
       return true;
   };

    Calendar.prototype.convertTo24Hour = function (hours, pm) {
      if (this.hourFormat == '24') {
        return hours;
      }
      if (pm) {
        hours = hours + 12;
        return (hours > 23 ) ? 0 : hours;
      }
      return (hours > 11) ? 0 : hours;
    };

and change toggleAMPM to be:

 Calendar.prototype.toggleAMPM = function (event) {
        if (this.validateTime(this.currentHour, this.currentMinute, this.currentSecond, !this.pm)) {
          this.pm = !this.pm;
          this.updateTime();
        }
        event.preventDefault();
    };

[cagataycivici]

See #8290