Convert warmup/cooldown rate to integers

Author: grod220

Cargo.lock

@@ -36,6 +36,7 @@ solana-sysvar-id = { version = "3.0.0", optional = true }
 anyhow = "1"
 assert_matches = "1.5.0"
 bincode = "1.3.3"
+proptest = "1.9.0"
 serial_test = "3.2.0"
 solana-account = {version = "3.2.0", features = ["bincode"] }
 solana-borsh = "3.0.0"

interface/Cargo.toml

@@ -13,6 +13,7 @@ pub mod state;
 #[cfg(feature = "sysvar")]
 pub mod sysvar;
 pub mod tools;
+pub mod warmup_cooldown_allowance;
 
 pub mod program {
     solana_pubkey::declare_id!("Stake11111111111111111111111111111111111111");