Moves security group functionality into extension

partially implements blueprint disable-server-extensions

This patch adds an output extension for security group output
and modifies the servers code to only allow security groups
to be specified if the os-security-groups extension is
enabled.

Duplicated security group functionality was removed from the
createserverext extension, it is now a duplicate of the servers
endpoint. The boot_from_volume extension was also changed
to inherit the servers functionality so that security_groups
will continue to work. The block_device_mapping code will be
modified in a subsequent patch.

Tests were added for new functionality, and existing tests were
modified slightly. The disk_config extension was modified to be
a bit more lenient so the data for it doesn't need to be mocked
out in other tests.

Change-Id: I59bd985d68b85ce6926cde85fbc38cfad4e75f4c

0 files changed, 0 insertions, 0 deletions