refactor simple TCP server into pkg

cmd/primetime/main.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"log"
+	"net"
+
+	"protohackers/pkg/conn"
+)
+
+type data struct {
+	Method string `json:"method"`
+	Number int    `json:"number"`
+}
+
+func main() {
+	err := conn.StartSimple(primetime)
+	if err != nil {
+		log.Fatalln(err)
+	}
+}
+
+func primetime(c net.Conn) {
+}