Added UI/Integration tests for creating Accounts, Accounts list, Account details and Accounts Task mgmt. features

[varsvat]

This PR has been made on top of this PR

Please Add Screenshots If any UI changes:

1. Test Account creation successfully

• Enter Account identifier
• Enter name
• Enter Alternate account number
• Enter Ledger
• Enter Reference account number
• Enter Balance
• Navigate to the next stepper screen
• Create a new Account holder
• Edit existing Account holder
• Try deleting the account holder
• Navigate to the next screen
• Create a new Signature authority
• Navigate to the the final Review fragment of the stepper layout
• Check if the account was created successfully?
• delete the test entry from the database after the test is successful

VID_20210821182602.mp4

2. Test account state changed successfully

• launch the account list fragment
• open the account details fragment
• Click on the task linear layout
• enter comment while changing the state
• Assert if the state was updated successfully?

Record_2021-08-21-18-23-29_44eb2329bec141192ae3530735fe1d93.mp4

3. Test Account List fragment and recyclerView onclick

• Launch the application
• Navigate to the teller list fragment and check if recyclerview is visible
• click on the recyclerView Item
• Assert if the item has been displayed correctly

Please Add Summary of what changes you have made and if possible provide links.(Optional)

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[varsvat]

@jawidMuhammadi please review this PR whenever you get time