feat(Value): add.

Author: sciborrudnicki

src/lib/index.ts

@@ -1,3 +1,4 @@
 // Function.
 export { resultCallback } from './result-callback.func';
 export { typeOf } from './type-of.func';
+export { Value } from './value.class';

src/lib/value.class.ts

@@ -0,0 +1,34 @@
+/**
+ * @description 
+ * @export
+ * @abstract
+ * @class Value
+ * @template Type 
+ */
+export abstract class Value<Type> {
+  /**
+   * @description Returns the privately stored value of generic type variable `Type`.
+   * @public
+   * @readonly
+   * @type {Type}
+   */
+  public get value() {
+    return this.#value;
+  }
+
+  
+  /**
+   * @description Privately stored value of generic type variable `Type`.
+   * @type {Type}
+   */
+  #value: Type;
+
+  /**
+   * Creates an instance of `Value`.
+   * @constructor
+   * @param {Type} value 
+   */
+  constructor(value: Type) {
+    this.#value = value;
+  }
+}