feat: add optional created_at and initialized_at for rw relations

[shanicky]

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What's changed and what's your intention?

dev=> select name,initialized_at,created_at from rw_sources;
 name |        initialized_at         |          created_at
------+-------------------------------+-------------------------------
 s    | 2023-07-25 10:53:30.128+00:00 | 2023-07-25 10:53:30.130+00:00
(1 row)

dev=> select name,initialized_at,created_at from rw_sinks;
 name |        initialized_at         |          created_at
------+-------------------------------+-------------------------------
 ss   | 2023-07-25 10:53:32.176+00:00 | 2023-07-25 10:53:43.238+00:00
(1 row)

dev=> select name,initialized_at,created_at from rw_tables;
 name |        initialized_at         |          created_at
------+-------------------------------+-------------------------------
 t    | 2023-07-25 10:53:28.030+00:00 | 2023-07-25 10:53:28.052+00:00
(1 row)

dev=> select name,initialized_at,created_at from rw_indexes;
 name |        initialized_at         |          created_at
------+-------------------------------+-------------------------------
 x    | 2023-07-25 10:53:30.135+00:00 | 2023-07-25 10:53:32.171+00:00
(1 row)

dev=> select name,initialized_at,created_at from rw_materialized_views;
 name |        initialized_at         |          created_at
------+-------------------------------+-------------------------------
 m    | 2023-07-25 10:53:28.089+00:00 | 2023-07-25 10:53:30.123+00:00
(1 row)

dev=> select relationname, relationtype , initialized_at, created_at from rw_relation_info ;
 relationname |   relationtype    |        initialized_at         |          created_at
--------------+-------------------+-------------------------------+-------------------------------
 m            | MATERIALIZED VIEW | 2023-07-25 10:53:28.089+00:00 | 2023-07-25 10:53:30.123+00:00
 t            | TABLE             | 2023-07-25 10:53:28.030+00:00 | 2023-07-25 10:53:28.052+00:00
 ss           | SINK              | 2023-07-25 10:53:32.176+00:00 | 2023-07-25 10:53:43.238+00:00
 x            | INDEX             | 2023-07-25 10:53:30.135+00:00 | 2023-07-25 10:53:32.171+00:00
 s            | SOURCE            | 2023-07-25 10:53:30.128+00:00 | 2023-07-25 10:53:30.130+00:00
(5 rows)

Checklist

• I have written necessary rustdoc comments
• I have added necessary unit tests and integration tests
• All checks passed in ./risedev check (or alias, ./risedev c)

Documentation

[yezizp2012]

Rest LGTM! Thx for the great job, it will be very helpful for debugging in rw.

[codecov]

Codecov Report

Merging #11199 (0050a9b) into main (c6b490f) will decrease coverage by 0.02%.
The diff coverage is 32.07%.

@@            Coverage Diff             @@
##             main   #11199      +/-   ##
==========================================
- Coverage   69.68%   69.66%   -0.02%     
==========================================
  Files        1351     1351              
  Lines      224437   224531      +94     
==========================================
+ Hits       156392   156417      +25     
- Misses      68045    68114      +69     

Flag	Coverage Δ
rust	69.66% <32.07%> (-0.02%)	⬇️

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

Files Changed	Coverage Δ
...rc/catalog/system_catalog/rw_catalog/rw_indexes.rs	0.00% <0.00%> (ø)
...system_catalog/rw_catalog/rw_materialized_views.rs	0.00% <0.00%> (ø)
...alog/system_catalog/rw_catalog/rw_relation_info.rs	0.00% <0.00%> (ø)
.../src/catalog/system_catalog/rw_catalog/rw_sinks.rs	0.00% <0.00%> (ø)
...src/catalog/system_catalog/rw_catalog/rw_tables.rs	0.00% <0.00%> (ø)
src/meta/src/manager/streaming_job.rs	19.04% <0.00%> (-5.70%)	⬇️
src/meta/src/rpc/ddl_controller.rs	0.00% <0.00%> (ø)
src/meta/src/manager/catalog/mod.rs	24.35% <10.00%> (-0.04%)	⬇️
src/frontend/src/catalog/index_catalog.rs	78.28% <50.00%> (-0.77%)	⬇️
...rc/catalog/system_catalog/rw_catalog/rw_sources.rs	26.08% <50.00%> (+1.47%)	⬆️
... and 11 more

... and 2 files with indirect coverage changes

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[yezizp2012]

LGTM!!

[shanicky]

cc @neverchanje