Initial implementations

src/main/kotlin/ziputils/Zip64ExtraFieldRecord.kt

@@ -0,0 +1,13 @@
+package ziputils
+
+internal class Zip64ExtraFieldRecord(
+    size: UShort,
+    val uncompressedSize: ULong?,
+    val compressedSize: ULong?,
+    val localHeaderOffset: ULong?,
+    val disk: UInt?
+): ExtraFieldRecord(ID, size) {
+    companion object {
+        const val ID: UShort = 0x0001U
+    }
+}