Fix TS object API generation of schema containing array of enumeration having no zero default (#8832)

* set the array constructor to fill with minvalue

* add regression generation test

tests/non_zero_enum.fbs

@@ -0,0 +1,12 @@
+enum NonZero: ubyte {
+    VAL = 1,
+}
+
+struct NonZeroArrayStruct {
+    data: [NonZero:4];
+}
+
+table NonZeroVectorTable {
+    values: [NonZero];
+    value: NonZero = VAL;
+}