Add CTRL interface

* add command to query Packet Services (GPRS etc.) for particular IMSI.
* add vty command to configure ctrl bind address
* add missing vty copyright notice

Change-Id: Id787ef4aa88473c3bbde6ee25117b1fd99dc8fcb
Related: OS#1645
diff --git a/configure.ac b/configure.ac
index bfda9c5..a04185f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -33,6 +33,7 @@
 PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.9.5)
 PKG_CHECK_MODULES(LIBOSMOGSM, libosmogsm >= 0.9.0)
 PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 0.9.0)
+PKG_CHECK_MODULES(LIBOSMOCTRL, libosmoctrl)
 PKG_CHECK_MODULES(LIBOSMOABIS, libosmoabis >= 0.3.2)
 
 PKG_CHECK_MODULES(SQLITE3, sqlite3)