Isolate actions strategies in order to code improvement and programmatic usage. (#749)

* Isolate cut, copy and core helper functions.

* Update tests to accommodate new proposal

* Add/update tests

* Add tests to static copy/cut methods

* Update condition syntax based on PR reviews

* Migrate clipboard-action-default to functional approach. Update tests. Add tests

* Improve folder structure. Clean up code.

* Add types. Fix tsd check env. Improve in-code doc comments

* Improve in-code doc comments

test/common/create-fake-element.js

@@ -0,0 +1,13 @@
+import createFakeElement from '../../src/common/create-fake-element';
+
+describe('createFakeElement', () => {
+  it('should define a fake element and set the position right style property', (done) => {
+    // Set document direction
+    document.documentElement.setAttribute('dir', 'rtl');
+
+    const el = createFakeElement(document.body);
+
+    assert.equal(el.style.right, '-9999px');
+    done();
+  });
+});