feat(parser): context free tag mode (#165)

* feat(parser): initial context free tag mode

* fix: tests coverage

* chore: update readme

* chore: remove unused badge from readme

packages/bbob-parser/test/index.test.js

@@ -0,0 +1,9 @@
+import { TagNode } from "../src/index";
+
+describe('index', () => {
+  test('tag with content and params', () => {
+    const tagNode = TagNode.create('test', {test: 1}, ['Hello']);
+
+    expect(String(tagNode)).toBe('[test test="1"]Hello[/test]');
+  });
+})