Update automatic package generator

- add DEB package creation functionality
- update RPM spec file to work with SLES

Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com>

utils/pckgen.d/deb/debian/CAS_NAME.install

@@ -0,0 +1,8 @@
+etc/
+lib/opencas/
+lib/udev/
+sbin/
+var/
+utils/open-cas.shutdown lib/systemd/system-shutdown/
+utils/open-cas.service lib/systemd/system/
+utils/open-cas-shutdown.service lib/systemd/system/