Move SnapshotConfig class

src/main/kotlin/eventDemo/libs/event/projection/SnapshotConfig.kt

@@ -0,0 +1,23 @@
+package eventDemo.libs.event.projection
+
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.minutes
+
+data class SnapshotConfig(
+  /**
+   * Keep snapshot when is on the head of the queue cache
+   */
+  val maxSnapshotCacheSize: Int = 20,
+  /**
+   * Keep snapshot when is newer of
+   *
+   *     snapshot.date > now + maxSnapshotCacheTtl
+   */
+  val maxSnapshotCacheTtl: Duration = 10.minutes,
+  /**
+   * Keep snapshot when version is this modulo
+   *
+   *     snapshot.lastVersion % modulo == 1
+   */
+  val modulo: Int = 10,
+)