Example on how to get space attributes of datastores: capacity, free space, uncommitted, provisioned and over-provisioned if applies. Also shows how many hosts this datastore available from and how many VMs are stored.
Example on how to get space attributes of datastores: capacity, free space,
uncommitted, provisioned and over-provisioned if applies. Also shows how
many hosts this datastore available from and how many VMs are stored.

closes #141

pathcl/pyvmomi-community-samples,jm66/pyvmomi-community-samples,vmware/pyvmomi-community-samples,ddcrjlalumiere/pyvmomi-community-samples,prziborowski/pyvmomi-community-samples