Create organisation functionality

src/Database/Seeds/OrganisationPermissions.php

@@ -43,6 +43,12 @@ class OrganisationPermissions extends BaseSeed
     protected function getPermissions()
     {
         return [
+            'create_organisation' => new Permission([
+                'slug'        => 'create_organisation',
+                'name'        => 'Create organisation',
+                'conditions'  => 'always()',
+                'description' => 'Create a new organisation.',
+            ]),
             'uri_organisations' => new Permission([
                 'slug'        => 'uri_organisations',
                 'name'        => 'Organisation management page',
@@ -84,6 +90,7 @@ class OrganisationPermissions extends BaseSeed
         $roleSiteAdmin = Role::where('slug', 'site-admin')->first();
         if ($roleSiteAdmin) {
             $roleSiteAdmin->permissions()->sync([
+                $permissions['create_organisation'],
                 $permissions['uri_organisations'],
             ], false);
         }