allocate immediately required fields (#1)

Reviewed-on: BigfootDev/flatbuffers-bigfoot#1
Co-authored-by: Romain BOULLARD <romain.boullard@protonmail.com>

tests/required_table_default_test.h

@@ -0,0 +1,12 @@
+#ifndef REQUIRED_TABLE_DEFAULT_TEST_H
+#define REQUIRED_TABLE_DEFAULT_TEST_H
+
+namespace flatbuffers {
+namespace tests {
+
+void RequiredTableDefaultTest();
+
+}  // namespace tests
+}  // namespace flatbuffers
+
+#endif  // REQUIRED_TABLE_DEFAULT_TEST_H