Implement transaction request

[ripzery]

Issue/Task Number: #20

Closes #20

Overview

This PRs implement 2 things:

1. Transaction request flow

The detail is here:

• The app will generate the transaction request(for receive and send) every time after the primary token is set, then save ids to the share preference.

• The app will listen to the user socket event every time the authenticated user opens the app.

• The app will stop listening to the user socket event every time the app is closed or log out.

• For the transaction request consumption type send, the app will show the confirmation page to confirm a transaction whether approve or reject when it is consumed.

• For the transaction request consumption type receive, the app will just update the balance of the app.

2. Tests

Tests are cover the following use-cases:

• Set the primary token
• Receive an event transaction request consumption type send
• Receive an event transaction request consumption type receive

Note: The gif will come later