test random trade amounts, fix conversion utils using decimal.js

dist/utils/TaskLooper.js

@@ -1,4 +1,19 @@
 "use strict";
+/*
+ * Copyright Haveno
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 Object.defineProperty(exports, "__esModule", { value: true });
 /**
  * Run a task in a fixed period loop.