Actually use srp.add_srpfleetmain permission

Also adds a new @permissions_required decorator.

allianceauth/srp/templates/srp/management.html

@@ -17,6 +17,8 @@
                         <a href="{% url 'srp:all' %}" class="btn btn-primary">
                             {% trans "View All" %}
                         </a>
+                    {% endif %}
+                    {% if perms.srp.add_srpfleetmain or perms.auth.srp_management %}
                         <a href="{% url 'srp:add' %}" class="btn btn-success">
                             {% trans "Add SRP Fleet" %}
                         </a>

allianceauth/srp/views.py

@@ -59,7 +59,7 @@ def srp_fleet_view(request, fleet_id):
 
 
 @login_required
-@permission_required('auth.srp_management')
+@permissions_required(('auth.srp_management', 'srp.add_srpfleetmain'))
 def srp_fleet_add_view(request):
     logger.debug("srp_fleet_add_view called by user %s" % request.user)
     completed = False