Fix // Deprecated: comments for @deprecated annotations (#88)

* Fix Deprecated: comments

@deprecated
@deprecated:"Use MethodV2 instead."

* Fix example

Author: VojtechVitek

_examples/golang-basics/example.gen.go

@@ -68,14 +68,17 @@ var WebRPCServices = map[string][]string{
 {{ if $opts.types -}}
 type {{$service.Name}} interface {
 	{{- range $_, $method := $service.Methods}}
+	{{- $deprecated := index $method.Annotations "deprecated" -}}
 	{{- if gt (len $method.Comments) 0 -}}
 		{{- range $_, $comment := $method.Comments }}
 			// {{ replaceAll $comment "\"" "'" }}
 		{{- end }}
+		{{- if $deprecated }}
+			//
+		{{- end }}
 	{{- end }}
-	{{- $deprecated := index $method.Annotations "deprecated" -}}
 	{{- if $deprecated }}
-	// Deprecated:
+	// Deprecated: {{ $deprecated.Value }}
 	{{- end }}
 	{{ if eq $method.StreamOutput true -}}
 	{{$method.Name}}(ctx context.Context{{range $_, $input := $method.Inputs}}, {{$input.Name}} {{template "field" dict "Name" $input.Name "Type" $input.Type "TypeMap" $typeMap "TypePrefix" $typePrefix "Optional" $input.Optional "TypeMeta" $input.Meta}}{{end}}, stream {{$method.Name}}StreamWriter) error
@@ -174,14 +177,17 @@ func (w *streamWriter) write(respPayload interface{}) error {
 {{ range $_, $service := $services -}}
 type {{$service.Name}}Client interface {
 	{{- range $_, $method := $service.Methods}}
+	{{- $deprecated := index $method.Annotations "deprecated" -}}
 	{{- if gt (len $method.Comments) 0 }}
 		{{- range $_, $comment := $method.Comments }}
 			// {{ replaceAll $comment "\"" "'" }}
 		{{- end }}
+		{{- if $deprecated }}
+			//
+		{{- end }}
 	{{- end }}
-	{{- $deprecated := index $method.Annotations "deprecated" -}}
 	{{- if $deprecated }}
-	// Deprecated:
+	// Deprecated: {{ $deprecated.Value }}
 	{{- end }}
 	{{ if eq $method.StreamOutput true -}}
 	{{$method.Name}}(ctx context.Context{{range $_, $input := $method.Inputs}}, {{$input.Name}} {{template "field" dict "Name" $input.Name "Type" $input.Type "TypeMap" $typeMap "TypePrefix" $typePrefix "Optional" $input.Optional "TypeMeta" $input.Meta}}{{end}}) ({{$method.Name}}StreamReader, error)