ISSUE-1700: user namespace API

[bohutang]

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Summary

1. Refine the Config ENV variable name to prefix with the Group name, LOG_/QUERY_/META_/STORE_
2. Add tenant and namespace to QueryConfig group
3. Add common/management/namespace mod

Changelog

• Improvement

Related Issues

Part-1 of #1700
Fixes #1724

Test Plan

Unit Tests

Stateless Tests

[databend-bot]

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[codecov-commenter]

Codecov Report

Merging #1727 (46b8f86) into master (0d10503) will increase coverage by 0%.
The diff coverage is 92%.

@@           Coverage Diff           @@
##           master   #1727    +/-   ##
=======================================
  Coverage      72%     72%            
=======================================
  Files         573     576     +3     
  Lines       33938   34329   +391     
=======================================
+ Hits        24642   25012   +370     
- Misses       9296    9317    +21     

Impacted Files	Coverage Δ
query/src/configs/config.rs	62% <41%> (+<1%)	⬆️
common/management/src/namespace/namespace_api.rs	46% <46%> (ø)
...mon/management/src/namespace/namespace_mgr_test.rs	96% <96%> (ø)
common/management/src/namespace/namespace_mgr.rs	97% <97%> (ø)
query/src/configs/config_test.rs	66% <100%> (+1%)	⬆️

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[bohutang]

/review @zhang2014

[databend-bot]

Take the reviewer to zhang2014

[zhang2014]

LGTM

[databend-bot]

CI Passed
Reviewer Approved
Let's Merge