feat: support gateway/tcproute

[AlinsRan]

Type of change:

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

What this PR does / why we need it:

• feat: GatewayAPI Support #644

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

[tao12345666333]

please resolve conflics. thanks!

[tao12345666333]

please resolve conflics again. thanks

[codecov-commenter]

Codecov Report

Merging #1217 (a53dfff) into master (f71b376) will increase coverage by 0.11%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##           master    #1217      +/-   ##
==========================================
+ Coverage   40.62%   40.73%   +0.11%     
==========================================
  Files          75       77       +2     
  Lines        7006     7030      +24     
==========================================
+ Hits         2846     2864      +18     
- Misses       3847     3851       +4     
- Partials      313      315       +2     

Impacted Files	Coverage Δ
pkg/providers/gateway/translation/gateway.go	0.00% <ø> (ø)
...providers/gateway/translation/gateway_httproute.go	64.10% <ø> (ø)
.../providers/gateway/translation/gateway_tlsroute.go	0.00% <ø> (ø)
pkg/providers/gateway/translation/translator.go	0.00% <ø> (ø)
pkg/providers/utils/generic.go	0.00% <0.00%> (ø)
.../providers/gateway/translation/gateway_tcproute.go	81.81% <81.81%> (ø)

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[tao12345666333]

Can you write about your plans for TCPRoute support in the description of this PR?
I see that the Add event is mostly handled in this PR, but the Update and Delete events etc. are not handled.

I added the round 1 flag to the title

[AlinsRan]

Can you write about your plans for TCPRoute support in the description of this PR? I see that the Add event is mostly handled in this PR, but the Update and Delete events etc. are not handled.

I added the round 1 flag to the title

Preliminary support update and delete has been given.

[tao12345666333]

@AlinsRan could you please merge latest code?

[tao12345666333]

LGTM