agregando boton de registrar en mantenimiento de sedes

src/main/webapp/vistas/mantenimientoSede.jsp

@@ -51,9 +51,12 @@
             <div class="panel panel-primary card-3" style="margin-top: 30px"> 
                 <div class="panel-heading" style="padding: 8px 15px">
                     <h6 class="panel-title" style="font-size: 15px; font-family: inherit"><i class="icon icon-search4"></i>&nbsp; LISTADO DE SEDES</h6>
+                    <div class="heading-elements">                                                                
+                        <button type="button" id="btnNuevoRol" class="btn bg-slate border-slate-600 btn-xs"><i class="glyphicon glyphicon-plus"></i>&nbsp; Nuevo rol</button>
+                    </div>
                 </div>
                 <div id="divDatatable">
-<!--                    <table class="table dataTable table-striped table-hover table-sm table-bordered display" id="tblAsistenciaPolicias">                                                 
+                    <!--                    <table class="table dataTable table-striped table-hover table-sm table-bordered display" id="tblAsistenciaPolicias">                                                 
                                             <thead>
                                                 <tr>
                                                     <th class="text-center">Nº</th>