CLI helper: Create Escrow Account

[grod220]

A CLI utility helper for creating an escrow account for the token-wrap program. This specifically helps consumers generate one with the right mint authority for the wrap instruction.

Walkthrough for testing locally:

1. Build program and binary

cargo build-sbf && cargo build

2. Start solana test validator

solana-test-validator \
  --bpf-program TwRapQCDhWkZRrDaHfZGuHxkZ91gHDRkyuzNqeU5MgR target/deploy/spl_token_wrap.so \
  --reset

3. Create a new mint

spl-token create-token
# mint addr -> 7uN7hezPKhsCs59xChKgmZnGGjEfEQwE8sAWVxrUSmHV

4. Create Escrow account (first arg mint, second wrapped token program addr)

cargo run --bin spl-token-wrap create-escrow-account 7uN7hezPKhsCs59xChKgmZnGGjEfEQwE8sAWVxrUSmHV TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb

# Escrow Account Address: 7zRuC2akyz9bAm3xSefwkKxzfqcLD7Ly2dUJxZUoBUb2
# Escrow Account Owner (PDA): CvecTxZ2SdRN4bjNXkQL4BGHnJpvwaZneKQnvsWUAfc2
# Escrow Token Program ID: TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA
# Signature: 2GjCm5snYsVEjQB687qPB95hMZRWnPaymfWfqdUGDTLYNF35Svd6Uw9UGXnnJfJnBG6qzWZiyNvp1AH2uA4gxsSi

[buffalojoec]

Looks great! Just tiny nits from me.

[joncinque]

Looks great overall! Just a couple of small things

[joncinque]

Two last things, then this can go in!

[joncinque]

Looks great!

[buffalojoec]

gud code, gud docs, ship it. 🫡