goctl生成Kotlin代码优化 (#16)

* 修复Kotlin连接失败抛出Exception;添加Kotlin连接超时

* 修复路径参数导致生成的Kotlin函数名带有:问题

* Added HTTP Patch Method

* kotlin-add-patch-support

* format-imports

tools/goctl/api/gogen/genroutes.go

@@ -43,6 +43,7 @@ var mapping = map[string]string{
 	"head":   "http.MethodHead",
 	"post":   "http.MethodPost",
 	"put":    "http.MethodPut",
+	"patch":  "http.MethodPatch",
 }
 
 type (