Restructured Test Suite

- separated tests into e2e and unit directories
- created configs directory structure to support test framework
- added/modified `npm run test`, `npm run test:unit` and `npm run test:e2e` to target all, unit and e2e tests respectively
- modified some of the test names to be more descriptive

New structure of the Test Suite has following directory tree:

```
tests
├── configs
│   ├── env.js
│   └── modules
│       ├── clock
│       │   ├── clock_12hr.js
│       │   ├── clock_24hr.js
│       │   └── clock_showPeriodUpper.js
│       └── helloworld
│           └── helloworld.js
├── e2e
│   ├── env_spec.js
│   └── modules
│       ├── clock_spec.js
│       └── helloworld_spec.js
└── unit
    ├── functions
    │   └── cmp_versions_spec.js
    └── global_vars
        └── root_path_spec.js
```

tests/unit/functions/cmp_versions_spec.js

@@ -0,0 +1,20 @@
+var chai = require("chai");
+var expect = chai.expect;
+var classMM = require("../../../js/class.js"); // require for load module.js
+var moduleMM =  require("../../../js/module.js")
+
+describe("Test function cmpVersions in js/module.js", function() {
+
+	it("should return -1 when comparing 2.1 to 2.2", function() {
+		expect(moduleMM._test.cmpVersions("2.1", "2.2")).to.equal(-1);
+	});
+
+	it("should be return 0 when comparing 2.2 to 2.2", function() {
+		expect(moduleMM._test.cmpVersions("2.2", "2.2")).to.equal(0);
+	});
+
+	it("should be return 1 when comparing 1.1 to 1.0", function() {
+		expect(moduleMM._test.cmpVersions("1.1", "1.0")).to.equal(1);
+	});
+});
+