update customer endpoint

[ankitdas13]

Reference doc

Add Bank Account

Delete Bank Account

Fetch Eligibility- Affordability

Eligibility Check

[rohitcbr]

If you have a JIRA ticket for this code change, it is better to add the PR title as JIRA-TICKET-ID (JIRA-TICKET-TITLE)
In this way it is easier to find the code changes later using the JIRA tickets

[rohitcbr]

Some checks are failing, please check it

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.07%. Comparing base (0a25a2d) to head (513814b).

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #308      +/-   ##
============================================
+ Coverage     83.77%   86.07%   +2.29%     
- Complexity      306      314       +8     
============================================
  Files            58       60       +2     
  Lines           709      718       +9     
  Branches         31       31              
============================================
+ Hits            594      618      +24     
+ Misses           91       75      -16     
- Partials         24       25       +1     

Flag	Coverage Δ
tests	86.07% <100.00%> (+2.29%)	⬆️

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