Enumeration ClientExtendedValidationAndFlowControl

Do not do any additional validation or flow control

Apply additional client-side validation and operational flow control that respects the default AWS IoT Core limits.

Currently applies the following additional validation:

1. No more than 8 subscriptions per SUBSCRIBE packet
2. Topics and topic filters have a maximum of 7 slashes (8 segments), not counting any AWS rules prefix
3. Topics must be <= 256 bytes in length
4. Client id must be <= 128 bytes in length

Also applies the following flow control:

1. Outbound throughput throttled to 512KB/s
2. Outbound publish TPS throttled to 100