* net.sh: Add -F to discard validator nodes that didn't bootup successfully
* Relax sanity node count when validator bootup failure is permitted
* Less sanity for testnet-demo
* net.sh: Add -F to discard validator nodes that didn't bootup successfully
* Add support for Azure instances in testnet creation
* Fixup
* Fix shellcheck errors
* More shellcheck and cleanup node creation and deletion
* More shellcheck and cleanup node creation and deletion
* Fixup instance wait API
* Fix revieew comments and add GPU installation extension