unit/test-gatt: Add TP/GAD/CL/BV-04-C test
unit/test-gatt: Add TP/GAD/CL/BV-04-C test

Verify that a Generic Attribute Profile client
can discover characteristic declarations within
a specified service definition.

pkarasev3/bluez,pkarasev3/bluez,mapfau/bluez,mapfau/bluez,silent-snowman/bluez,ComputeCycles/bluez,ComputeCycles/bluez,pstglia/external-bluetooth-bluez,ComputeCycles/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez,pkarasev3/bluez,mapfau/bluez,silent-snowman/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez,pkarasev3/bluez,mapfau/bluez,ComputeCycles/bluez,pstglia/external-bluetooth-bluez