feat: ApisixTls support mTLS

[lingsamuel]

Signed-off-by: Ling Samuel lingsamuelgrace@gmail.com

Please answer these questions before submitting a pull request

• Why submit this pull request?

• Bugfix

• New feature provided

• Improve performance

• Backport patches

• Related issues: Fixes request help: supported mTLS in apisix-ingress #205

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New feature or improvement

• Describe the details and related test reports.

Support mTLS between client and APISIX.

[codecov-commenter]

Codecov Report

Merging #492 (ecda49b) into master (f089ffe) will increase coverage by 0.16%.
The diff coverage is 1.19%.

@@            Coverage Diff             @@
##           master     #492      +/-   ##
==========================================
+ Coverage   36.28%   36.44%   +0.16%     
==========================================
  Files          50       53       +3     
  Lines        4093     4261     +168     
==========================================
+ Hits         1485     1553      +68     
- Misses       2406     2498      +92     
- Partials      202      210       +8     

Impacted Files	Coverage Δ
pkg/ingress/apisix_tls.go	0.00% <0.00%> (ø)
pkg/ingress/controller.go	1.20% <0.00%> (+1.20%)	⬆️
pkg/ingress/secret.go	0.00% <0.00%> (ø)
pkg/kube/translation/apisix_ssl.go	0.00% <0.00%> (ø)
pkg/apisix/ssl.go	32.06% <100.00%> (-2.98%)	⬇️
pkg/kube/translation/plugin.go	100.00% <0.00%> (ø)
pkg/kube/translation/translator.go	51.38% <0.00%> (ø)
pkg/types/pod.go	100.00% <0.00%> (ø)
pkg/kube/translation/apisix_consumer.go	73.33% <0.00%> (ø)
pkg/ingress/pod.go	28.88% <0.00%> (ø)
... and 1 more

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