[core] NOWEB subscribe presence

src/core/abc/session.abc.ts

@@ -651,7 +651,7 @@ export abstract class WhatsappSession {
     throw new NotImplementedByEngineError();
   }
 
-  public subscribePresence(id: string): Promise<void> {
+  public subscribePresence(id: string): Promise<any> {
     throw new NotImplementedByEngineError();
   }
 

src/core/engines/noweb/session.noweb.core.ts

@@ -1243,6 +1243,11 @@ export class WhatsappSessionNoWebCore extends WhatsappSession {
     return this.toWahaPresences(remoteJid, result);
   }
 
+  public subscribePresence(id: string): Promise<void> {
+    const jid = toJID(id);
+    return this.sock.presenceSubscribe(jid);
+  }
+
   /**
    * Status methods
    */