vapi: expand internal path constants
vapi: expand internal path constants

Change "Path" to just the "/rest" prefix, expand others to include "/com/vmware".
Not all APIs have /com/vmware in the path.

bruceadowns/govmomi,bruceadowns/govmomi,vmware/govmomi,bruceadowns/govmomi,vmware/govmomi,vmware/govmomi