move nova.common.deprecated to openstack-common
move nova.common.deprecated to openstack-common

Fixes bug #1070511

nova has a common deprecation path which lets you turn
deprecation warnings into fatal errors via config. Make
this a function of the openstack common log to make it
available to other projects in a standard way.

Include exception directly in logging module.

Update exception to work correctly now that it's not
based off of nova's exception class.

Change-Id: I699e776c99c429e60dfb5cd6c0cdbb661bae0ce8

magic0704/oslo.log,dims/oslo.log,varunarya10/oslo.log,meganjbaker/oslo.log,zzicewind/oslo.log,JioCloud/oslo.log,openstack/oslo.log,akash1808/oslo.log