nanovna-saver

Add Pipfile (for pipenv) and requirements.txt (for pip) to make installation a bit less manual. Right now the installation instructions call out the two python external dependencies (pyserial and PyQT5), but assumes the dependencies are installed globally. I suggest adding a requirements file (and its pipenv equivalent: Pipfile) so folks can use the normal python installation tools. This pull request adds those files. Tested under WSL and Ubuntu 18. 2019-08-30 19:15:09 +00:00			`pyqt5`
			`pyserial`
Added Time-Domain Reflectometry, aka. "cable length measurement". Upped version to 0.0.2 Added numpy as a requirement Updated the readme feature list 2019-09-01 13:18:35 +00:00			`numpy`