starting to refactor the code in multiple packages

internal/gmgr/gomgr.go

@@ -0,0 +1,27 @@
+package gmgr
+
+type player struct {
+	id   int
+	name string
+}
+
+func newPlayer(id int, name string) *player {
+	return &player{id: id, name: name}
+}
+
+func (p *player) Id() int {
+	return p.id
+}
+
+func (p *player) Name() string {
+	return p.name
+}
+
+func (p *player) SetName(name string) {
+	p.name = name
+}
+
+type lobby struct {
+	id    int
+	teams []player
+}