[MD]Credential management in stack management

[seraphjiang]

be able to CRUD credential to support multiple datasource

Temporal tasks break down table with rough estimation. Will update the dates afterwards with more contexts.

• [x] #1804
• [x] #1839
  • [x] #1742
  • [x] #1810
• [x] Credential Saved Object on Data Source Plugin
  • [x] #2081
    • [x] #1813
    • [x] #1828
    • [x] #1938
  • [x] #1850
  • [x] #1926
  • [x] #2023
  • [x] #2124
  • [ ] #2207
• [ ] Credential Management pages on CM Plugin
  • [x] Create UX mock pages
  • [x] Add Save credential frontend page
  • [x] Add Credential editing frontend page
  • [x] Add Credential management frontend page
  • [x] #1977
    • [x] #2144
    • [x] #1902
    • [x] #2047
    • [x] #2048
    • [x] #2049
    • [x] #2050
    • [x] #2051
    • [x] #2055
    • [x] #2060
    • [x] #2184
  • [x] #1973
  • [x] #1876
  • [x] #1968
  • [x] #1978
  • [x] #2025
  • [x] #2024
  • [x] #2027
• [x] #1904
• [ ] MISC
  • [ ] [MD] Remove runtime generated ts.map file
  • [x] https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2150/
  • [x] #2158
• [ ] Security Review
  • [x] Threat modeling
  • [x] Pen test preparation
• [ ] Unit test
  • [x] Add unit test for crypto module
  • [x] #2068
  • [x] #2033
  • [x] #2169
• [ ] Integration test
  • [x] #2206
  • [ ] Add integration test for decryption

Documentation Tasks

• [x] #2199

Optional Tasks

1. #1976
2. #1872
3. #1945
4. [MD] Support Keyring rotation and update encrypted field of all credentials (Optional)
5. #2046
6. #2110
7. #2035
8. [MD] Support multiple Keyrings