feat(custom-templates): introduce custom templates (#3906)

* feat(custom-templates): introduce types

* feat(custom-templates): introduce data layer service

* feat(custom-templates): introduce http handler

* feat(custom-templates): create routes and view stubs

* feat(custom-templates): add create custom template ui

* feat(custom-templates): add json keys

* feat(custom-templates): introduce custom templates list page

* feat(custom-templates): introduce update page

* feat(stack): create template from stack

* feat(stacks): create stack from custom template

* feat(custom-templates): disable edit/delete of templates

* fix(custom-templates): fail update on non admin/owner

* fix(custom-templates): add ng-inject decorator

* chore(plop): revert template

* feat(stacks): remove actions column

* feat(stack): add button to create template from stack

* feat(stacks): add empty state for templates

* feat(custom-templates): show templates in a list

* feat(custom-template): replace table with list

* feat(custom-templates): move create template button

* refactor(custom-templates): introduce more fields

* feat(custom-templates): use stack type when creating template

* feat(custom-templates): use same type as stack

* feat(custom-templates): add edit and delete buttons to template item

* feat(custom-templates): customize stack before deploy

* feat(stack): show template details

* feat(custom-templates): move customize

* feat(custom-templates): create description required

* fix(template): show platform icon

* fix(custom-templates): show spinner when creating stack

* feat(custom-templates): prevent user from edit templates

* feat(custom-templates): use resource control for custom templates

* feat(custom-templates): show created templates

* feat(custom-templates): filter templates by stack type

* fix(custom-templates): create swarm or standalone stack

* feat(stacks): filter templates by type

* feat(resource-control): disable resource control on public

* feat(custom-template): apply access control on edit

* feat(custom-template): add form validation

* feat(stack): disable create custom template from external task

* refactor(custom-templates): create template from file and type

* feat(templates): introduce a file handler that returns template docker file

* feat(template): introduce template duplication

* feat(custom-template): enforce unique template name

* fix(template): rename copy button

* fix(custom-template): clear access control selection between templates

* fix(custom-templates): show required fields

* refactor(filesystem): use a constant for temp path

app/docker/components/dockerSidebarContent/docker-sidebar-content.js

@@ -6,5 +6,7 @@ angular.module('portainer.docker').component('dockerSidebarContent', {
     standaloneManagement: '<',
     adminAccess: '<',
     offlineMode: '<',
+    toggle: '<',
+    currentRouteName: '<',
   },
 });