Refactor: unify many_one and many_many storage

[ray6080]

Remove the special storage layout for MANY/ONE_ONE rel tables. Before this PR, we store columns in the fwd direction of a MANY/ONE_ONE table or bwd direction of a ONE/ONE_MANY table as same as columns in a node table. That is to say, data in those columns are not stored in the CSR layout.
This was introduced for two reasons: 1) as a special performance optimization that we will not factorize the scan output of these columns, instead go for vectorization, as the max degree is only 1; 2) as a usability feature to enforce the degree constraint.
The downside of this special optimization is that it complicates the code path in storage and our scan operators. It's good to keep it as a usability feature, and we should revisit the layout to generalize the performance optimization to all rel tables, regardless of their rel multiplicity, as scans on small degree MANY_MANY tables can also suffer from unnecessary factorization when we should switch to full vectorization.

Note: this PR introduces performance degrades on MANY/ONE_ONE tables. See #2988. A temporary solution for the degrades, which adds a special path for scanning over MANY/ONE_ONE rel tables in CSR format can possibly be introduced if the performance issue is critical, though prefer not to do it now as we should solve it alongside #2988.

[codecov]

Codecov Report

Attention: Patch coverage is 91.85185% with 55 lines in your changes are missing coverage. Please review.

Project coverage is 93.30%. Comparing base (df5ec1c) to head (2f8ab72).

Files	Patch %	Lines
src/storage/store/rel_table_data.cpp	91.65%	42 Missing ⚠️
src/storage/store/rel_table.cpp	83.33%	3 Missing ⚠️
src/common/enums/rel_multiplicity.cpp	80.00%	2 Missing ⚠️
src/common/exception/message.cpp	50.00%	2 Missing ⚠️
src/include/storage/store/rel_table_data.h	90.00%	2 Missing ⚠️
src/processor/operator/persistent/copy_rel.cpp	92.30%	2 Missing ⚠️
src/storage/local_storage/local_rel_table.cpp	91.30%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2912      +/-   ##
==========================================
- Coverage   93.52%   93.30%   -0.22%     
==========================================
  Files        1125     1121       -4     
  Lines       43090    42863     -227     
==========================================
- Hits        40300    39995     -305     
- Misses       2790     2868      +78     

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