use bytemuck_derive 1.7.0 explicitly in sdk and program

[kevinheavey]

Problem

• We are building an old version of bytemuck_derive that uses syn v1, meanwhile once [solana-program] Move bn254 logic from solana-program into a separate crate #1495 lands the only other thing in solana-program that uses syn v1 will be the optional borsh support. So removing syn v1 from solana-program will help compile times.
• Using bytemuck_derive as a separate crate should also help compile times a bit by being more friendly to parallel builds. Also if we don't use bytemuck_derive explicitly it will look like an unused dependency.

Summary of Changes

• Explicitly specify bytemuck_derive = "1.7.0" in Cargo.toml.
• Use bytemuck_derive directly in solana-sdk and solana-program instead of using the derive feature of bytemuck.

[joncinque]

Looks great! We could probably apply the same work to the rest of the repo, but I can do that in follow-up work