refactoring

src/io/ByteReader.java

src/io/ByteWriter.java

src/io/Bytes.java

src/mslinks/LinkTargetIDList.java

src/mslinks/Main.java

src/mslinks/ShellLink.java

src/mslinks/ShellLinkHeader.java

src/mslinks/data/BitSet32.java

src/mslinks/data/FileAttributesFlags.java

src/mslinks/data/Filetime.java

src/mslinks/data/GUID.java

src/mslinks/data/HotKeyFlags.java

src/mslinks/data/LinkFlags.java