fix: add name field when create route and upstream

[okaybase]

Please answer these questions before submitting a pull request

• Why submit this pull request?

• Bugfix

• New feature provided

• Improve performance

• Backport patches

• Related issues

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Bugfix

• Description

• How to fix?

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New feature or improvement

• Describe the details and related test reports.
  add name field when create route and upstream, in order to fit apisix-dashboard.
  the name field is a required field in the apisix-dashboard's route and upstream.

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Backport patches

• Why need to backport?

• Source branch

• Related commits and pull requests

• Target branch

[codecov-io]

Codecov Report

Merging #333 (44641ed) into master (8006297) will decrease coverage by 0.36%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #333      +/-   ##
==========================================
- Coverage   43.72%   43.36%   -0.37%     
==========================================
  Files          40       39       -1     
  Lines        3428     3434       +6     
==========================================
- Hits         1499     1489      -10     
- Misses       1761     1775      +14     
- Partials      168      170       +2     

Impacted Files	Coverage Δ
pkg/apisix/resource.go	78.43% <100.00%> (+0.21%)	⬆️
pkg/apisix/route.go	43.47% <100.00%> (-0.48%)	⬇️
pkg/apisix/upstream.go	46.85% <100.00%> (+0.61%)	⬆️
pkg/apisix/cluster.go	28.44% <0.00%> (-5.97%)	⬇️
test/e2e/e2e.go

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[tokers]

@okaybase Thanks for your contribution. I added some test cases for your changes, you may look through it.

[okaybase]

@tokers thanks very much for your test cases and help! 😄