Add support for including/excluding virtual machines by name

[atc0005]

Overview

Support is currently available for ignoring specific virtual machines by name, but not for explicitly including a subset of virtual machines. The only way to currently limit the scope based on inclusion logic is through resource pool and folder ID (per in-progress work on #809).

Once implemented, support for explicitly including & excluding virtual machines by name would be a third option.

Deprecation

Once this support is added the --ignore-vm flag currently supported by multiple plugins would likely be deprecated and aliased to a new flag specific to excluding VMs.

The existing flag would continue to work mostly as before, but (like the new flag used to explicitly exclude VMs) would not be permitted to be used along with the new flag to explicitly include VMs.

References

See also:

• Add support for excluding/ignoring VMs by Folder Managed Object ID (MOID) #809
• Review "Power Cycle Uptime" plugin, consider extending to support additional filters #210