fix: make ingress controller compatible with ingress.extensions/v1beta1

[tokers]

Please answer these questions before submitting a pull request

• Why submit this pull request?

• Bugfix

• New feature provided

• Improve performance

• Backport patches

• Related issues

#313

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Bugfix

• Description

• How to fix?

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New feature or improvement

• Describe the details and related test reports.

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Backport patches

• Why need to backport?

• Source branch

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[codecov-io]

Codecov Report

Merging #315 (026040d) into master (b5cba04) will increase coverage by 45.74%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           master      #315       +/-   ##
============================================
+ Coverage   54.25%   100.00%   +45.74%     
============================================
  Files          35         1       -34     
  Lines        2479         1     -2478     
============================================
- Hits         1345         1     -1344     
+ Misses        974         0      -974     
+ Partials      160         0      -160     

Impacted Files	Coverage Δ
pkg/version/version.go
pkg/kube/translation/util.go
pkg/seven/state/route_worker.go
pkg/apisix/resource.go
pkg/types/errors.go
pkg/id/idgen.go
pkg/log/default_logger.go
pkg/apisix/apisix.go
pkg/apisix/ssl.go
pkg/kube/translation/apisix_route.go
... and 21 more

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