feat: (step 3.2) change all pg catalogs to views upon rw system tables

[yezizp2012]

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What's changed and what's your intention?

Close #11005 . Introduced some other system tables and views:

1. rw_relations: a view that shows all relations in the database.
2. rw_system_tables: a table that contains all system tables in the database.
3. rw_types: a table that contains all supported types in risingwave.
4. rw_user_secrets: a table that contains all user encrypted password info, which is only readable by super users.
5. rw_columns: a table that contains all columns of existing relations except source and sink.

Checklist

• I have written necessary rustdoc comments
• I have added necessary unit tests and integration tests
• I have added fuzzing tests or opened an issue to track them. (Optional, recommended for new SQL features Sqlsmith: Sql feature generation #7934).
• My PR contains breaking changes. (If it deprecates some features, please create a tracking issue to remove them in the future).
• All checks passed in ./risedev check (or alias, ./risedev c)
• My PR changes performance-critical code. (Please run macro/micro-benchmarks and show the results.)

• My PR contains critical fixes that are necessary to be merged into the latest release. (Please check out the details)

Documentation

• My PR contains user-facing changes.

Click here for Documentation

Types of user-facing changes

Please keep the types that apply to your changes, and remove the others.

• SQL commands, functions, and operators

Release note

[codecov]

Codecov Report

Merging #11334 (177192e) into main (d55af54) will increase coverage by 0.70%.
Report is 15 commits behind head on main.
The diff coverage is 95.85%.

@@            Coverage Diff             @@
##             main   #11334      +/-   ##
==========================================
+ Coverage   69.80%   70.50%   +0.70%     
==========================================
  Files        1359     1365       +6     
  Lines      225645   225637       -8     
==========================================
+ Hits       157508   159083    +1575     
+ Misses      68137    66554    -1583     

Flag	Coverage Δ
rust	70.50% <95.85%> (+0.70%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
...alog/system_catalog/rw_catalog/rw_relation_info.rs	32.30% <ø> (+32.30%)	⬆️
src/batch/src/task/task_execution.rs	55.02% <33.33%> (-0.28%)	⬇️
...rc/catalog/system_catalog/rw_catalog/rw_indexes.rs	64.70% <63.63%> (+64.70%)	⬆️
...talog/system_catalog/rw_catalog/rw_user_secrets.rs	78.37% <78.37%> (ø)
...talog/system_catalog/information_schema/columns.rs	100.00% <100.00%> (ø)
...atalog/system_catalog/information_schema/tables.rs	100.00% <100.00%> (ø)
src/frontend/src/catalog/system_catalog/mod.rs	94.19% <100.00%> (+35.34%)	⬆️
.../catalog/system_catalog/pg_catalog/pg_attribute.rs	100.00% <100.00%> (+100.00%)	⬆️
...d/src/catalog/system_catalog/pg_catalog/pg_cast.rs	100.00% <100.00%> (+100.00%)	⬆️
.../src/catalog/system_catalog/pg_catalog/pg_class.rs	100.00% <100.00%> (+100.00%)	⬆️
... and 11 more

... and 55 files with indirect coverage changes

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[xiangjinwu]

Rest lgtm. It does look like we need more tests though.