Implement paging and refactor stores to match new store interface with paging

storage/store/memory/uptime_bench_test.go

@@ -0,0 +1,26 @@
+package memory
+
+import (
+	"testing"
+	"time"
+
+	"github.com/TwinProduction/gatus/core"
+)
+
+func BenchmarkProcessUptimeAfterResult(b *testing.B) {
+	uptime := core.NewUptime()
+	now := time.Now()
+	now = time.Date(now.Year(), now.Month(), now.Day(), now.Hour(), 0, 0, 0, now.Location())
+	// Start 12000 days ago
+	timestamp := now.Add(-12000 * 24 * time.Hour)
+	for n := 0; n < b.N; n++ {
+		processUptimeAfterResult(uptime, &core.Result{
+			Duration:  18 * time.Millisecond,
+			Success:   n%15 == 0,
+			Timestamp: timestamp,
+		})
+		// Simulate service with an interval of 3 minutes
+		timestamp = timestamp.Add(3 * time.Minute)
+	}
+	b.ReportAllocs()
+}