move models folder into commands folder

pkg/commands/models/remote_branch.go

@@ -0,0 +1,23 @@
+package models
+
+// Remote Branch : A git remote branch
+type RemoteBranch struct {
+	Name       string
+	RemoteName string
+}
+
+func (r *RemoteBranch) FullName() string {
+	return r.RemoteName + "/" + r.Name
+}
+
+func (r *RemoteBranch) RefName() string {
+	return r.FullName()
+}
+
+func (r *RemoteBranch) ID() string {
+	return r.RefName()
+}
+
+func (r *RemoteBranch) Description() string {
+	return r.RefName()
+}