core: api to create contacts with group members (#3053)

* core: api to create contacts with group members

* implementation

* fix contact replace, more tests

* comment

* rename fields

* fix

* fix

* test group is still incognito

* fix

* replace connection instead of contact

* fix

* check version

* style, names

---------

Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>

src/Simplex/Chat/Migrations/chat_schema.sql

@@ -68,6 +68,9 @@ CREATE TABLE contacts(
   deleted INTEGER NOT NULL DEFAULT 0,
   favorite INTEGER NOT NULL DEFAULT 0,
   send_rcpts INTEGER,
+  contact_group_member_id INTEGER
+  REFERENCES group_members(group_member_id) ON DELETE SET NULL,
+  contact_grp_inv_sent INTEGER NOT NULL DEFAULT 0,
   FOREIGN KEY(user_id, local_display_name)
   REFERENCES display_names(user_id, local_display_name)
   ON DELETE CASCADE
@@ -713,3 +716,6 @@ CREATE INDEX idx_chat_items_user_id_item_status ON chat_items(
   item_status
 );
 CREATE INDEX idx_connections_to_subscribe ON connections(to_subscribe);
+CREATE INDEX idx_contacts_contact_group_member_id ON contacts(
+  contact_group_member_id
+);