feat: ipairs(...) support in Bytearray

dev/tests/bytearray.lua

@@ -6,3 +6,7 @@ for i=1,10 do
     assert(#arr == i)
     assert(arr[i] == 10 - i)
 end
+
+for i, v in ipairs(arr) do
+    assert(v == 10 - i)
+end

res/modules/internal/bytearray.lua

@@ -119,6 +119,15 @@ local bytearray_mt = {
     end,
     __gc = function(self)
         free(self.bytes)
+    end,
+    __ipairs = function(self)
+        local i = 0
+        return function()
+            i = i + 1
+            if i <= self.size then
+                return i, self.bytes[i - 1]
+            end
+        end
     end
 }