remove thirdparty diectory, add go.mod for package dependences

.example/net/ghttp/server/https/https.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"github.com/gogf/gf/net/ghttp"
+)
+
+func main() {
+	s := ghttp.GetServer()
+	s.BindHandler("/", func(r *ghttp.Request) {
+		r.Response.Writeln("来自于HTTPS的：哈喽世界！")
+	})
+	s.EnableHTTPS("./server.crt", "./server.key")
+	s.SetAccessLogEnabled(true)
+	s.SetPort(8199)
+	s.Run()
+}