* renmae Go post process file env variable
* add back samples/client/petstore/c/libcurl.licence
* keep go samples up-to-date
* update go petstore samples
* update go samples without formatting
* copy from go-server and add go-gin-server generator
* change the templates for the gin
* fix warnings of the golint tool
* fix the path of script
* add samples
* delete unnecessary comments (#1048)
* make the help message more appropriate (#1048)
* fix the link address format (#1048)
* minor improvement