hlr: add osmo-hlr.cfg

Copy osmo-hlr.cfg from docker-playground.git, but replace all IPs with
127.0.0.1.

Change-Id: I73f673523dab8765ca87851175fafdec9fc20e1b

hlr/osmo-hlr.cfg

@@ -0,0 +1,23 @@
+!
+! OsmoHLR example configuration
+!
+log stderr
+ logging filter all 1
+ logging color 1
+ logging print category 1
+ logging timestamp 1
+ logging print extended-timestamp 1
+ logging level all debug
+ logging level linp error
+!
+line vty
+ bind 127.0.0.1
+ctrl
+ bind 127.0.0.1
+hlr
+ gsup
+  bind ip 127.0.0.1
+ euse foobar
+ ussd route prefix *#100 internal own-msisdn
+ ussd route prefix *#101 internal own-imsi
+ ussd route prefix *100 external foobar