[Feature] - PrivateNetwork deprecation for VPC

[ddymko]

Private networks have been deprecated in favor for VPC

https://www.vultr.com/api/#tag/private-Networks
https://www.vultr.com/api/#tag/VPCs

Private Network

Private Network routes are deprecated.

Use the new VPC routes instead.

Instances

The attach_private_network and enable_private_network fields are deprecated.

Use the new attach_vpc and enable_vpc fields instead. This affects the following calls:

Create instance
Update instance

The following endpoints are deprecated:

List Instance Private networks
Attach Private Network
Detach Private Network

Use these new endpoints instead:

List Instance VPCs
Attach VPC
Detach VPC

Load Balancers

The private_network field is deprecated.

Use vpc instead. This affects the following calls:

Create Load Balancer
Update Load Balancer

[apeters1827]

Hi guys! Can you implement support for working with vpcs with this SDK in the near future?