make TxCreationKeys::new public

Allows calling of InMemoryChannelKeys methods

Author: devrandom

lightning/src/ln/chan_utils.rs

@@ -318,7 +318,8 @@ impl_writeable!(ChannelPublicKeys, 33*5, {
 
 
 impl TxCreationKeys {
-	pub(crate) fn new<T: secp256k1::Signing + secp256k1::Verification>(secp_ctx: &Secp256k1<T>, per_commitment_point: &PublicKey, a_delayed_payment_base: &PublicKey, a_htlc_base: &PublicKey, b_revocation_base: &PublicKey, b_htlc_base: &PublicKey) -> Result<TxCreationKeys, secp256k1::Error> {
+	/// Create a new TxCreationKeys
+	pub fn new<T: secp256k1::Signing + secp256k1::Verification>(secp_ctx: &Secp256k1<T>, per_commitment_point: &PublicKey, a_delayed_payment_base: &PublicKey, a_htlc_base: &PublicKey, b_revocation_base: &PublicKey, b_htlc_base: &PublicKey) -> Result<TxCreationKeys, secp256k1::Error> {
 		Ok(TxCreationKeys {
 			per_commitment_point: per_commitment_point.clone(),
 			revocation_key: derive_public_revocation_key(&secp_ctx, &per_commitment_point, &b_revocation_base)?,