sqlite: add a last_insert_rowid fn (#10341)

vlib/sqlite/sqlite.v

@@ -47,6 +47,8 @@ fn C.sqlite3_open(&char, &&C.sqlite3) int
 
 fn C.sqlite3_close(&C.sqlite3) int
 
+fn C.sqlite3_last_insert_rowid(&C.sqlite3) i64
+
 //
 fn C.sqlite3_prepare_v2(&C.sqlite3, &char, int, &&C.sqlite3_stmt, &&char) int
 
@@ -124,6 +126,12 @@ fn get_int_from_stmt(stmt &C.sqlite3_stmt) int {
 	return res
 }
 
+// Returns last insert rowid
+// https://www.sqlite.org/c3ref/last_insert_rowid.html
+pub fn (db DB) last_insert_rowid() i64 {
+	return C.sqlite3_last_insert_rowid(db.conn)
+}
+
 // Returns a single cell with value int.
 pub fn (db DB) q_int(query string) int {
 	stmt := &C.sqlite3_stmt(0)