Structured files/directories and nip01, nip02, nip17 implementation

src/functions/messages.rs

@@ -0,0 +1,8 @@
+use anyhow::Result;
+use nostr_sdk::prelude::*;
+use crate::nips::nip17;
+
+pub async fn send_private_message(client: &Client, receiver_pubkey: &str, message: &str) -> Result<EventId> {
+    let receiver = PublicKey::parse(receiver_pubkey)?;
+    nip17::send_dm(client, receiver, message).await
+}