[Analyze-704] Run data characterization against public webapi

[brandantck]

• resolves: Run Data Charaterization against WebAPI Endpoints #704

1. Remap object keys (remove underscores and renamed some keys) from dc results sql to be compatible with both public webapi and d2e
2. Add mock_server created by @jerome-ng (added dc-routes.js for proxy to public webapi DC endpoints)
3. Add two envs
   1. USE_PUBLIC_WEBAPI_PROXY: Boolean to choose whether to use public webapi proxy or not
   2. PUBLIC_WEBAPI_PROXY_URL: String to set URL for proxy server to call public webapi endpoints

Example of rendering SYNPUF5PCT from public webapi.

EXTRAS:
To run DC against public webapi,
1. Add USE_PUBLIC_WEBAPI_PROXY=true to .env.local file
2. Navigate to ui/apps/vue-mri-ui-lib/src/query-filter/mock_server, run npm run start

Merge Checklist

Please cross check this list if additions / modifications needs to be done on top of your core changes and tick them off. Reviewer can as well glance through and help the developer if something is missed out.

• Automated Tests (Jasmine integration tests, Unit tests, and/or Performance tests)
• Updated Manual tests / Demo Config
• Documentation (Application guide, Admin guide, Markdown, Readme and/or Wiki)
• Verified that local development environment is working with latest changes (integrated with latest develop branch)
• following best practices in code review doc