[deployment] separate faucet variables into its own variables file
[deployment] separate faucet variables into its own variables file

Break apart faucet specific variables into faucet file.
This is just a refactoring, nothing in the setup is changing. It's in preparation for a separate benchmark environment, that does not require faucet instance running.

libra/libra,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,aptos-labs/aptos-core,libra/libra,aptos-labs/aptos-core,libra/libra,aptos-labs/aptos-core