*: support "show global bind"

[iamzhoug37]

What problem does this PR solve?

associated iusse: #8935
feature: support show global binding
use case:
create table t(i int, s varchar(20))
create index index_t on t(i,s)
create global binding for select * from t using select * from t use index for join(index_t)
if we want to show all global binding in the tidb, then we execute show global bindings

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test

Code changes
N/A

Side effects
N/A

Related changes
N/A

[alivxxx]

LGTM

[alivxxx]

/rebuild

[codecov]

Codecov Report

Merging #10200 into master will increase coverage by 0.0273%.
The diff coverage is 92.3076%.

@@               Coverage Diff                @@
##             master     #10200        +/-   ##
================================================
+ Coverage   77.9142%   77.9416%   +0.0273%     
================================================
  Files           407        407                
  Lines         83049      83075        +26     
================================================
+ Hits          64707      64750        +43     
+ Misses        13536      13525        -11     
+ Partials       4806       4800         -6

[alivxxx]

/run-all-tests

[zz-jason]

LGTM