Qslib

- Add internal SSH tunnel support, so that this doesn't need to be set up
separately, and can be configured with parameters to Machine.
- Fix mid-run syncing bugs related to directory creation.
- Handle some different inputs for Protocol creation.
- Try to handle spaces in names better; this is still a problem, howver.

Various small improvements and bug fixes.

Initial implementation of full communication (OK/NEXT/ERRor), Experiment
files, Machine connection interface. Adaptation of QSConnectionAsync to
use new communication. Move of monitor system into qslib.

Initial version of QSConnectionAsync and other low-level portions to
support rawquant and qpcr\_data\_updater.