feat(pisa-daemon, config): add Endpoint field to Service

[xuanyuan300]

Signed-off-by: xuanyuan300 [email protected]

What is changed and how it works?

What's Changed:

1. Add Endpoint field to Service.
2. Changed qos_group type from Vec to Option.
3. Fix some unit test error.

[codecov]

Codecov Report

Merging #351 (a8ee8c5) into master (df61eb4) will increase coverage by 5.71%.
The diff coverage is 84.84%.

@@            Coverage Diff             @@
##           master     #351      +/-   ##
==========================================
+ Coverage   66.97%   72.69%   +5.71%     
==========================================
  Files           7        6       -1     
  Lines         427      597     +170     
==========================================
+ Hits          286      434     +148     
- Misses        133      152      +19     
- Partials        8       11       +3     

Flag	Coverage Δ
unittests	72.69% <84.84%> (+5.71%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pisa-controller/pkg/proxy/server.go	20.00% <0.00%> (-2.23%)	⬇️
pisa-controller/pkg/webhook/server.go	26.66% <0.00%> (ø)
pisa-controller/pkg/proxy/http.go	53.75% <43.24%> (-4.15%)	⬇️
pisa-controller/pkg/webhook/injection.go	59.02% <82.56%> (+20.08%)	⬆️
pisa-controller/pkg/proxy/builder.go	92.95% <98.64%> (+1.73%)	⬆️

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