etc: load counters module in config files

- it provides control interface to counters/stats

etc/kamailio-basic.cfg

@@ -164,6 +164,7 @@ loadmodule "sanity.so"
 loadmodule "ctl.so"
 loadmodule "cfg_rpc.so"
 loadmodule "acc.so"
+loadmodule "counters.so"
 
 #!ifdef WITH_AUTH
 loadmodule "auth.so"

etc/kamailio-oob.cfg

@@ -250,6 +250,7 @@ loadmodule "sanity.so"
 loadmodule "ctl.so"
 loadmodule "cfg_rpc.so"
 loadmodule "acc.so"
+loadmodule "counters.so"
 
 #!ifdef WITH_AUTH
 loadmodule "auth.so"

etc/kamailio.cfg

@@ -239,6 +239,7 @@ loadmodule "sanity.so"
 loadmodule "ctl.so"
 loadmodule "cfg_rpc.so"
 loadmodule "acc.so"
+loadmodule "counters.so"
 
 #!ifdef WITH_AUTH
 loadmodule "auth.so"