Create PanelHelper for non-collapsible panel.
Create PanelHelper for non-collapsible panel.

Holt59/cakephp3-bootstrap-helpers,raul338/cakephp3-bootstrap3-helpers,Casmo/cakephp3-bootstrap-helpers,Holt59/cakephp3-bootstrap3-helpers,ypnos-web/cakephp3-bootstrap-helpers