Add a way to test signatures and send a signature to any chain

[JesseAbram]

While writing the faucet I felt e2e testing was lacking, sure I can build and test the program, but I wanna be able to take the message and make sure it get signed properly then test it by sending it to the desired chain

Potential solutions

• some sort of synedrion adapter to allow to spin and test and get the sig
• an adapter a user can write to be able to send the sig to a desired chain