FEATURE - UI5 reference library generator

[cianmSAP]

As a developer,
I want to use a yeoman generator module,
so that I can be prompted to select a ui5 library to be referenced in a generate the library

Description

Prompting @sap-ux/ui5-library-reference-inquirer and writing @sap-ux/ui5-library-reference-writer are published modules in open-ux-tools, this module will encompass both into the ui5 library sub generator

Technical Design

Additions required to @sap-ux/fiori-generator-shared
This module will be consumed as a subgenerator i.e it will not be usable as a general generator by yeoman (this is done by not prefixing the module with generator-

Notes

Tasks

• Unit Tests added
• Test Cases defined