Deprecate cinder_* configuration settings

Create a new section in the configuration file called 'cinder'.
Move all of the cinder_* configuration settings to this section.

DocImpact

The table below has the changes:

+---------------------------------+----------------------------+
| 'DEFAULT' Section               | 'cinder' Section           |
|---------------------------------|----------------------------|
| cinder_catalog_info             | catalog_info               |
| cinder_endpoint_template        | endpoint_template          |
| os_region_name                  | os_region_name             |
| cinder_ca_certificates_file     | ca_certificates_file       |
| cinder_http_retries             | http_retries               |
| cinder_http_timeout             | http_timeout               |
| cinder_api_insecure             | api_insecure               |
| cinder_cross_az_attach          | cross_az_attach            |
+---------------------------------+----------------------------+

UpgradeImpact
The changes are backward compatible.

Change-Id: Ie6b3f9d60b5e149375ff3039be444538f5f50756
vmwareapi oslo.vmware library integration

These are the minimal changes necessary to integrate the vmwareapi
driver with the oslo.vmware code. Much of the change is mechanical
switching to call the library code, and removing obseleted code in the
driver where appropriate.

Effort was made to minimize the amount of actual driver code changes in
this round by keeping a small amount of shim code. Existing unit tests
were modified as appropriate. Additional patches will be introduced
shortly to include additional conversions and tests.

Summary of changes:

- use common/vmware/exceptions.py
- use oslo.vmware vim.py for the Vim implemenation
- use oslo.vmware api.py for api invocation/session
- updated existing unit tests
- nova retains its own version of get_{soap/wsdl}_url which using conf
  settings for default and overrides.

blueprint use-oslo-vmware
Co-authored-by: Radoslav Gerganov <rgerganov@vmware.com>
Co-authored-by: Davanum Srinivas <dims@linux.vnet.ibm.com>
Change-Id: Idab7778d4c7e5e7099d842debbcbc009cf9127b6
Merge "Deprecate cinder_* configuration settings"
Merge "vmwareapi oslo.vmware library integration"