Fix / extend interface connections especially wrt face-face connections

rocolib/api/components/Component.py

@@ -273,10 +273,10 @@ class Component(Parameterized):
 
         fromPort = self.getInterfaces(*fromInterface)
         toPort = self.getInterfaces(*toInterface)
-        if fromPort.canMate(toPort):
+        if fromPort.canMate(toPort) or toPort.canMate(fromPort):
             self.connections.setdefault(name, [fromInterface, toInterface, kwargs])
         else:
-            raise AttributeError(f"{fromInterface} cannot connect to {toInterface} according to getMate")
+            raise AttributeError(f"{fromInterface} ({fromPort} : {type(fromPort)}) cannot connect to {toInterface} ({toPort} : {type(toPort)}) according to getMate")
 
     def delConnection(self, name):
       self.connections.pop(name)