fix: [entities] use register_all to register all the classes automatically

cubicweb_blog/entities.py

@@ -205,8 +205,5 @@ class BlogEntryISiocItemAdapter(EntityAdapter):
 
 
 def registration_callback(vreg):
-    vreg.register(BlogRDFAdapter)
-    vreg.register(BlogEntryRDFAdapter)
-    vreg.register(MicroBlogRDFAdapter)
-    vreg.register(MicroBlogEntryRDFAdapter)
+    vreg.register_all(globals().values(), __name__, (CWUserRDFAdapter, ))
     vreg.register_and_replace(CWUserRDFAdapter, _CWUserRDFAdapter)