feat: ApisixGlobalRule support global rules

[AlinsRan]

Type of change:

• Bugfix
• New feature provided
• Improve performance
• Backport patches

What this PR does / why we need it:

Close: #1104

Pre-submission checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?
• Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first

[codecov-commenter]

Codecov Report

Merging #1586 (23755b9) into master (486b46a) will decrease coverage by 0.25%.
The diff coverage is 12.30%.

@@            Coverage Diff             @@
##           master    #1586      +/-   ##
==========================================
- Coverage   41.44%   41.18%   -0.26%     
==========================================
  Files          87       88       +1     
  Lines        7420     7485      +65     
==========================================
+ Hits         3075     3083       +8     
- Misses       3990     4043      +53     
- Partials      355      359       +4     

Impacted Files	Coverage Δ
...providers/apisix/translation/apisix_global_rule.go	0.00% <0.00%> (ø)
pkg/providers/apisix/translation/translator.go	0.00% <ø> (ø)
...ess/translation/annotations/plugins/http_method.go	81.81% <ø> (ø)
pkg/providers/translation/context.go	80.95% <0.00%> (-8.53%)	⬇️
pkg/providers/utils/manifest.go	41.17% <27.58%> (-1.63%)	⬇️

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[tao12345666333]

Code overall LGTM

one question, how to deal with conflicts between ApisixGlobalRule and ApisixClusterConfig?

[AlinsRan]

Code overall LGTM

one question, how to deal with conflicts between ApisixGlobalRule and ApisixClusterConfig?

There are two conflicts:

1. Construct the same name
2. Different objects use the same plugin.

For 1, ApisixGlobalRule is a namespace-level resource that constructs objects based on namespace-name, and there is no identical name.

For 2, use plugins in different global-rules objects, APISIX does not restrict this. (Of course, we need to point it out in the documentation, or recommend users to use ApisixGlobalRule)