Modifying code to point to AAIService Properties

Modifying code to point to AAIService Properties

Adding dblib.properties (mysql credential properties to the sdnctl db),
modifying setenv.sh (used to define property values to mysql
- such as authenticating against the MySQL DB's) and adding the
APPC_CONFIG_DIR env variable as part of the Dockerfile.

Patch: Reverted Unintentional changes to the docker-compose template.
Patch: Changed some formatting as per Marcus's suggestions

Change-Id: I7cf9d90405bb4d552779cd0cd8a4f01525bdd823
Signed-off-by: Hector Anapan <ha076r@att.com>
Issue: [APPC-129]