Adapt sim_* cfg's to current syntax

+ make 'limit' usable as type in cfg files
+ minor fixes

Change-Id: Ib94b2645c7a0d978d64d4c86c4415d4b5b0d485f
Reviewed-on: https://forge.frm2.tum.de/review/c/sine2020/secop/playground/+/21485
Tested-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
Tested-by: JenkinsCodeReview <bjoern_pedersen@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>

secop/client/baseclient.py

@@ -286,6 +286,7 @@ class Client:
                 entry[0].set()
                 return
             self.log.error("got an unexpected %s %r" % (msgtype,data[0:1]))
+            self.log.error(repr(data))
             return
         if msgtype == DESCRIPTIONREPLY:
             entry = self.expected_replies.get((msgtype, ''), None)