Imports of custom-validation command

PathSynopsis
github.com/gin-gonic/ginPackage gin implements a HTTP web framework called gin.
github.com/gin-gonic/gin/binding
gopkg.in/go-playground/validator.v8
net/httpPackage http provides HTTP client and server implementations.
reflectPackage reflect implements run-time reflection, allowing a program to manipulate objects with arbitrary types.
timePackage time provides functionality for measuring and displaying time.