Fix NfNamingCode and remove NfcNamingCodes

NFNamingCode is read from environment variable VESMGR_NFNAMINGCODE.
If not set, the default value is "ricp".

NfcNamingCodes is an empty list.

Also add vesmgr version information log at vesmgr startup.
The version information is generated at compile time
from the container-tag.yaml file (if exists) and
from the git hash of the last commit.

Change-Id: If524e679dbba2ee56217b2e03b1daf18eb2c46fb
Signed-off-by: Roni Riska <roni.riska@nokia.com>