build with autoconf/automake, add jenkins.sh script

Add configure.ac and Makefile.ams to build with
  autoreconf && ./configure && make
like most other Osmocom projects.

Add jenkins.sh for a gerrit build job to verify patches.

Change-Id: I6b4419dd519f3d0a75235d0c22bf899f075347a3
diff --git a/sql/Makefile.am b/sql/Makefile.am
new file mode 100644
index 0000000..059a571
--- /dev/null
+++ b/sql/Makefile.am
@@ -0,0 +1,4 @@
+EXTRA_DIST = \
+	hlr_data.sql \
+	hlr.sql \
+	$(NULL)