Feature/voluxcontroller

See merge request !5

- docs: add visual programming interface user stories
- docs: add todo list

New CLI package + restructure and overhaul monorepo + new features and fixes across packages

See merge request !4

monorepo:
- Move `volux` package into it's own subdirectory to fix unpredictable build behavior and better isolate packages within monorepo
- Move `audio_demo.py` and `basic_demo.py` into `voluxcli` package
- Completely rewrite `README`
- Rename `audio_demo.sh` to `audio-demo.sh`
- Add script to easily enable `voluxcli` bash completions (`enable-bash-completions.sh`)
- Remove obsolete `process.json` file that used to be used with PM2
- Remove original `setup.py` that was specifically for the `volux` package
- Update `pyproject.toml` so Poetry can be used for development across entire monorepo

volux:
- Add `.update_frames_off()` method to `Strobify` util to allow the number of frames off to be changed on the fly
- Add `.open_counter` attribute to `Strobify` util to track the number of frames the gate has been open for
- Add `get_sine` util function for generating the `y` value of a sine wave for a given `t` value and `hertz`
- Add `VoluxDemo` base class for building `voluxcli` compatible demos
- Add simple `README` specific to `volux` package (installation steps and links to usage and various other package related things)
- Update package metadata

voluxcli:
- Create `voluxcli` package
- Create basic command-line interface
- Add ability to launch demos by ID using `demo` subcommand
- Add ability to list available demos
- Add shell completion support for demo IDs
- Add `--version` flag to list both `voluxcli` and `volux` version being used (and where they're imported from)
- Add `audio` and `basic` demos (originally stand-alone scripts from monorepo root)
- Add new `hue` demo which cycles the hue of a LIFX device with a specified label
- Add feature to automatically detect missing demo requirements before running demos
- Add feature to generate suggested install command for missing demo requirements (but only for specific packages)
- Add simple `README` specific to `voluxcli` package (installation steps, usage, common commands, links to `volux` package and other package related things)
- Update package metadata

voluxexamplemodule:
- Add simple `README` specific to `voluxexamplemodule` package (installation steps and links to usage and various other package related things)
- Update package metadata