Default-empty vectors of enums (#6505)

* disable clippy

* Vector of enum default

* swift and tests

* git clang format

* Rewrite enum parser checks

* Remove Voids from more_defaults

* vector enum swift

* remove vector accessor from swift

* clang format

Co-authored-by: Casper Neo <cneo@google.com>

tests/more_defaults.fbs

@@ -1,7 +1,12 @@
 
+enum ABC: int { A, B, C }
+
+
 table MoreDefaults {
   ints: [int] = [];
   floats: [float] = [     ];
   empty_string: string = "";
   some_string: string = "some";
+  abcs: [ABC] = [];
+  bools: [bool] = [];
 }