feat: http2 support

[Duslia]

What type of PR is this?

feat

Check the PR title.

• [x] This PR title match the format: <type>(optional scope): <description>
• [x] The description of this PR title is user-oriented and clear enough for others to understand.

(Optional) Translate the PR title into Chinese.

特性：http2 支持

(Optional) More detail description for this PR(en: English/zh: Chinese).

en: http2 support zh(optional): http2 支持

Which issue(s) this PR fixes:

[codecov[bot]]

Codecov Report

Base: 61.57% // Head: 60.08% // Decreases project coverage by -1.48% :warning:

Coverage data is based on head (5a3865c) compared to base (b7ff4bb). Patch coverage: 52.41% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #283      +/-   ##
===========================================
- Coverage    61.57%   60.08%   -1.49%     
===========================================
  Files           84      105      +21     
  Lines         8288    12835    +4547     
===========================================
+ Hits          5103     7712    +2609     
- Misses        2831     4575    +1744     
- Partials       354      548     +194     

Impacted Files	Coverage Δ
pkg/app/server/hertz.go	68.42% <0.00%> (-6.58%)	:arrow_down:
pkg/common/config/client_option.go	100.00% <ø> (ø)
pkg/protocol/http2/headermap.go	0.00% <0.00%> (ø)
pkg/protocol/http2/response_writer.go	0.00% <0.00%> (ø)
pkg/protocol/http2/server.go	0.00% <0.00%> (ø)
pkg/protocol/http2/stream.go	0.00% <0.00%> (ø)
pkg/protocol/http2/write.go	0.00% <0.00%> (ø)
pkg/route/engine.go	61.71% <ø> (-0.36%)	:arrow_down:
pkg/app/client/client.go	66.66% <4.76%> (-8.66%)	:arrow_down:
pkg/protocol/http2/http2.go	23.91% <23.91%> (ø)
... and 22 more

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