Due to changes in MicroPython to support PEP-479, StopIteration has been
deprecated for return. This results in xmltok to raise RuntimeError every
time. This commit is a simple fix to just change from StopIteration to
EOFError and then return it in the generator.
Uses the new require()/package()/module() functions from manifestfile.py.
Add manifest.py for iperf3 and pyjwt.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>