feat: create config generator script for os contribution

[ujjwal-ab]

Description of the change

• This PR includes an addition of new config generator script that uses JSON with required minimum fields for generating a destination's configuration files (db-config, ui-config).
• Includes test coverage for the above.

Checklists

Development

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• The code changed/added as part of this pull request has been covered with tests
• All tests related to the changed code pass in development

Code review

• This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
• Changes have been reviewed by at least one other engineer
• Issue from task tracker has a link to this pull request

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (e0e9495) 100.00% compared to head (6078a01) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##           develop      #742   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files            2         2           
  Lines           78        78           
  Branches        13        13           
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  Hits            78        78           

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[koladilip]

write some tests

[koladilip]

can you documentation on how to run the tests?