feat(shape): Add accessors for align

Author: ghaiklor

examples/Text.js

@@ -4,6 +4,7 @@ const Cursor = require('kittik-cursor').Cursor;
 const Shape = require('../lib/Basic').default;
 const cursor = new Cursor().resetTTY();
 
+// Create class that extends from Shape and implement render() method
 class Text extends Shape {
   render(cursor) {
     const text = this.getText();

src/Basic.js

@@ -194,6 +194,35 @@ export default class Shape {
     return this;
   }
 
+  /**
+   * Get align property from this shape.
+   *
+   * @returns {String}
+   */
+  getAlign() {
+    return this.get('align');
+  }
+
+  /**
+   * Set align to this shape.
+   *
+   * @param {String} align
+   * @returns {Shape}
+   */
+  setAlign(align) {
+    this.set('align', align);
+    return this;
+  }
+
+  /**
+   * Check if this shape must be aligned.
+   *
+   * @returns {Boolean}
+   */
+  isAligned() {
+    return !!this.get('align');
+  }
+
   /**
    * Get animation options from this shape.
    *