first commit of files

server/set.go

@@ -0,0 +1,13 @@
+package server
+
+import (
+	"artNet/models"
+	"fmt"
+)
+
+func (s *Server) Set(get models.Get) error {
+	if len(s.Driver.Bus) <= int(get.Bus) {
+		return fmt.Errorf("no bus number '%d' found", get.Bus)
+	}
+	return nil
+}