start of calendar: duration report

app/src/main/java/net/pokeranalytics/android/calculus/Calculator.kt

@@ -392,6 +392,7 @@ class Calculator {
 							results.addEvolutionValue(tHourlyRate, stat = HOURLY_RATE, data = sessionSet)
 							results.addEvolutionValue(tIndex.toDouble(), stat = NUMBER_OF_SETS, data = sessionSet)
 							results.addEvolutionValue(
+								(sessionSet.startDate.time / 3600000).toDouble(),
 								sessionSet.netDuration.toDouble(),
 								stat = DURATION,
 								data = sessionSet

app/src/main/java/net/pokeranalytics/android/calculus/Report.kt

@@ -342,6 +342,7 @@ class ComputedResults(group: ComputableGroup, shouldManageMultiGroupProgressValu
 		return when (stat) {
 			Stat.NUMBER_OF_SETS, Stat.NUMBER_OF_GAMES -> this.barEntries(stat)
 			Stat.STANDARD_DEVIATION -> this.distributionEntries(stat, context)
+			Stat.DURATION -> this.barEntries(stat)
 			else -> this.singleLineEntries(stat, context)
 		}
 	}