Add clearReloadables

orx-olive/src/main/kotlin/Reloadable.kt

@@ -7,6 +7,13 @@ import kotlin.reflect.jvm.jvmName
 
 private val store = mutableMapOf<String, Any>()
 
+/**
+ * Clear reloadable values
+ */
+fun clearReloadables() {
+    store.clear()
+}
+
 /**
  * A class with which persistent state can be reloaded from inside Olive scripts.
  */