Fixed #1 - Fixed the whatsnew-** script for loading release notes into builds

Added test to ensure that release notes are parsed properly
Updated to latest dependencies to fix security vulnerability
Updated GH Actions Workflow to run test before updating tag
Updated README.md to reflect proper whatsnew documentation.

node_modules/es-abstract/2019/FlattenIntoArray.js

@@ -0,0 +1,58 @@
+'use strict';
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+
+var Call = require('./Call');
+var CreateDataPropertyOrThrow = require('./CreateDataPropertyOrThrow');
+var Get = require('./Get');
+var HasProperty = require('./HasProperty');
+var IsArray = require('./IsArray');
+var ToLength = require('./ToLength');
+var ToString = require('./ToString');
+
+// https://ecma-international.org/ecma-262/10.0/#sec-flattenintoarray
+
+// eslint-disable-next-line max-params, max-statements
+module.exports = function FlattenIntoArray(target, source, sourceLen, start, depth) {
+	var mapperFunction;
+	if (arguments.length > 5) {
+		mapperFunction = arguments[5];
+	}
+
+	var targetIndex = start;
+	var sourceIndex = 0;
+	while (sourceIndex < sourceLen) {
+		var P = ToString(sourceIndex);
+		var exists = HasProperty(source, P);
+		if (exists === true) {
+			var element = Get(source, P);
+			if (typeof mapperFunction !== 'undefined') {
+				if (arguments.length <= 6) {
+					throw new $TypeError('Assertion failed: thisArg is required when mapperFunction is provided');
+				}
+				element = Call(mapperFunction, arguments[6], [element, sourceIndex, source]);
+			}
+			var shouldFlatten = false;
+			if (depth > 0) {
+				shouldFlatten = IsArray(element);
+			}
+			if (shouldFlatten) {
+				var elementLen = ToLength(Get(element, 'length'));
+				targetIndex = FlattenIntoArray(target, element, elementLen, targetIndex, depth - 1);
+			} else {
+				if (targetIndex >= MAX_SAFE_INTEGER) {
+					throw new $TypeError('index too large');
+				}
+				CreateDataPropertyOrThrow(target, ToString(targetIndex), element);
+				targetIndex += 1;
+			}
+		}
+		sourceIndex += 1;
+	}
+
+	return targetIndex;
+};