feature: support default response, use comma-separated codes to add a…

[sdghchj]

Describe the PR

1. Support default response. Add default response annotation #691 override PR Add support for @default annotation to add a default response type for operations #692
2. Use comma-separated codes to define the same response for multi-codes in one line.
3. Use comma-separated codes to add a header for multi responses in one line. Set same response header for multiple return codes #785
4. Use keyword 'all' to add a header for all responses. Set same response header for multiple return codes #785

Relation issue
#785 #691

// @Success 200 {string} string	"ok"
// @failure 400,401 {string} string	"error"
// @response default {string} string	"other error"
// @Header 200 {string} Location "/entity/1"
// @Header 200,400,default {string} Token "token"
// @Header all {string} Token2 "token2"

[codecov]

Codecov Report

Merging #837 (049f8c9) into master (2ca4d38) will increase coverage by 0.23%.
The diff coverage is 90.62%.

@@            Coverage Diff             @@
##           master     #837      +/-   ##
==========================================
+ Coverage   82.53%   82.76%   +0.23%     
==========================================
  Files           8        8              
  Lines        1626     1642      +16     
==========================================
+ Hits         1342     1359      +17     
+ Misses        168      167       -1     
  Partials      116      116              

Impacted Files	Coverage Δ
operation.go	87.78% <90.47%> (+0.57%)	⬆️
parser.go	78.98% <100.00%> (ø)

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[easonlin404]

LGTM

[easonlin404]

@sdghchj Thanks for your big effort on it!

[ubogdan]

Hi,
It looks like a broken commit were merged into master and everything is failing now...
Is this a work in progress ???