message: Add ed25519_verify MockApi impl
diff: @@ -133,8 +133,12 @@ impl Api for MockApi {
  )?)
  }
  - fn ed25519_verify(&self, _message: &[u8], _signature: &[u8], _public_key: &[u8]) -> bool {
  - true
  + fn ed25519_verify(&self, message: &[u8], signature: &[u8], public_key: &[u8]) -> bool {
  + let result = cosmwasm_crypto::ed25519_verify(message, signature, public_key);
  + match result {
  + Ok(v) => v,
  + Err(err) => panic!("ed25519_verify error: {:?}", err),
  + }
  }
  fn debug(&self, message: &str) {
  