Support Doc link format

[arxeiss]

Is your feature request related to a problem? Please describe.
Currently I specify data type by structure name. Like this

//  @Failure      404  {object}  api.ErrorResponse

But in my IDE (VS Code) I cannot click through that into structure definition.

Describe the solution you'd like
Go support Doc link, when you wrap structure/function etc into [ and ]. See https://tip.golang.org/doc/comment#doclinks

It would be nice if Swag would support that format too, so I could write.

//  @Failure      404  {object}  [api.ErrorResponse]

Then the text becomes clickable and I can just go to definition directly from Swag comment.

Currently if I try that, I get error

ParseComment error in file my_file.go :cannot find type definition: [api.ErrorResponse]