net/: refactor cfg templates

Adopt "foreach" and "common_" features and generally take in the improved
templates as used at 35c3.

If your config file relies on the tmpl_std that is now removed, you can locally
resurrect it with

  git checkout 2c6a55baa72de0e -- tmpl_std

but it's probably better to make a new copy of config_2g3g and insert your
local config there.

Change-Id: Ie6352c584c0fce57c617387160c285abf40a5f90
diff --git a/net/templates/osmo-hlr.cfg b/net/templates/osmo-hlr.cfg
new file mode 100644
index 0000000..969cc0a
--- /dev/null
+++ b/net/templates/osmo-hlr.cfg
@@ -0,0 +1,14 @@
+${include(common_template_warning)}
+hlr
+ gsup
+  bind ip ${HLR_IP}
+ ussd route prefix *0# internal own-msisdn
+ ussd route prefix *1# internal own-imsi
+ ussd route prefix *#100# internal own-msisdn
+ ussd route prefix *#101# internal own-imsi
+ store-imei
+
+${foreach(LOG_OUTPUT)}
+log ${LOG_OUTPUTn_TYPE}
+${include(common_logging)}
+${foreach_end}