add two-way translation between existing Profile class and new PersistedProfile CoreData class

damus/Nostr/CoreData/PersistedProfile.swift

@@ -21,4 +21,16 @@ final class PersistedProfile: NSManagedObject {
     @NSManaged var lud16: String?
     @NSManaged var nip05: String?
     @NSManaged var last_update: Date?
+    
+    func copyValues(from profile: Profile) {
+        name = profile.name
+        display_name = profile.display_name
+        about = profile.about
+        picture = profile.picture
+        banner = profile.banner
+        website = profile.website
+        lud06 = profile.lud06
+        lud16 = profile.lud16
+        nip05 = profile.nip05
+    }
 }

damus/Nostr/Nostr.swift

@@ -23,6 +23,18 @@ class Profile: Codable {
         self.nip05 = nip05
     }
     
+    convenience init(persisted_profile: PersistedProfile) {
+        self.init(name: persisted_profile.name,
+                  display_name: persisted_profile.display_name,
+                  about: persisted_profile.about,
+                  picture: persisted_profile.picture,
+                  banner: persisted_profile.banner,
+                  website: persisted_profile.website,
+                  lud06: persisted_profile.lud06,
+                  lud16: persisted_profile.lud16,
+                  nip05: persisted_profile.nip05)
+    }
+    
     private func str(_ str: String) -> String? {
         return get_val(str)
     }