feat: Use Integartion token for API authorization

[sanjeevyadavIT]

What does this implement/fix? Explain your changes. descripton: Removed the module that rely on admin login credentials to generate admin access token. In it's place use integration token to provide authorization to API

Does this close any currently open issues?

26

Any other comments? Update wiki, work on issue #27

Where has this been tested?

• Magento Version: [e.g. 2.1.0]
• Device: [Android Emulator]
• OS: [Pie]
• Version [API level 28]