Remove dynamic types

Do not use dynamic types anymore. The reason is that it's difficult:

- to maintain a shared type database over a network.
- the extra overhead when translating between processes and for
  maintaining the translation tables.
- race conditions in translating in RT-threads, this is a problem
  because we want to make event streams.

We now have simple enums with types and extension points for all
types. This is also nicer to use in general.
We don't need the mapper anymore or pass strings around as types.
There is a parallel type info system to get more info about ids and
enums and their hierarchy. It can also be used for debugging.

src/modules/module-client-node.c

@@ -46,8 +46,6 @@ struct factory_data {
 
 	struct pw_module *module;
 	struct spa_hook module_listener;
-
-	uint32_t type_client_node;
 };
 
 static void *create_object(void *_data,
@@ -122,16 +120,12 @@ static const struct pw_module_events module_events = {
 static int module_init(struct pw_module *module, struct pw_properties *properties)
 {
 	struct pw_core *core = pw_module_get_core(module);
-	struct pw_type *t = pw_core_get_type(core);
 	struct pw_factory *factory;
 	struct factory_data *data;
-	uint32_t type_client_node;
-
-        type_client_node = spa_type_map_get_id(t->map, PW_TYPE_INTERFACE__ClientNode);
 
 	factory = pw_factory_new(core,
 				 "client-node",
-				 type_client_node,
+				 PW_ID_INTERFACE_ClientNode,
 				 PW_VERSION_CLIENT_NODE,
 				 NULL,
 				 sizeof(*data));
@@ -142,7 +136,6 @@ static int module_init(struct pw_module *module, struct pw_properties *propertie
 	data->this = factory;
 	data->module = module;
 	data->properties = properties;
-	data->type_client_node = type_client_node;
 
 	pw_log_debug("module %p: new", module);