fix(tianmu): fix alter table add column not null.(#1188)

[DandreChen]

Summary about this PR

Issue Number: close #1188
[summary]
Convert alter table add column not null to use copy algorithm.

Tests Check List

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Changelog

• New Feature
• Bug Fix
• Performance Improvement
• Build/Testing/CI/CD
• Documentation
• Not for changelog (changelog entry is not required)

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features

[mergify]

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[lujiashun]

This PR is similar with #1208 ， the implementations is different， We can only choose one， @DandreChen @wisehead @hustjieke

[codecov]

Codecov Report

Base: 0.00% // Head: 43.15% // Increases project coverage by +43.15% 🎉

Coverage data is based on head (a96673a) compared to base (fd5c85f).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@                 Coverage Diff                  @@
##           stonedb-5.7-dev    #1235       +/-   ##
====================================================
+ Coverage                 0   43.15%   +43.15%     
====================================================
  Files                    0     1830     +1830     
  Lines                    0   396271   +396271     
====================================================
+ Hits                     0   171010   +171010     
- Misses                   0   225261   +225261     

Impacted Files	Coverage Δ
storage/tianmu/handler/ha_tianmu.h	81.25% <ø> (ø)
storage/tianmu/handler/ha_tianmu.cpp	56.20% <100.00%> (ø)
sql/sys_vars.h	36.97% <0.00%> (ø)
storage/perfschema/pfs_setup_object.cc	64.03% <0.00%> (ø)
....1/src/google/protobuf/compiler/cpp/cpp_helpers.cc	78.00% <0.00%> (ø)
sql/sql_class.h	70.93% <0.00%> (ø)
mysys/my_malloc.c	82.45% <0.00%> (ø)
storage/tianmu/core/compilation_tools.cpp	46.95% <0.00%> (ø)
sql/table_trigger_field_support.h	0.00% <0.00%> (ø)
storage/innobase/include/trx0undo.ic	100.00% <0.00%> (ø)
... and 1822 more

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[lujiashun]

LGTM