And fix new spotbugs exceptions.

Add bit packing I/O.

See merge request !1

In case the program is stopped while executing the subprocess.

And fail if missing.

+ Mark on FramedInputStream

Fixes #1

Fixes a bug where base128 was handled as LE regardless of actual
requested endianness.

This is a functional update to do what was intended. Writing LEB128 when
handling as BigEndian should be considered a bug, therefore a minor
release should be sufficient.