Data dashboard

It's now around 3 months since the first commit on this project and I have done what I initially wanted: plotting from serial port or network socket, with a bit of flexibility when it comes to data format. Today's release of version 1.0 marks closure of this project for any big new features as I got what I needed out of it. With that being said, I plan to leave it on github with all the precompiled releases for people to use and I'll take into account any bug reports (and smaller features) as they come, but I don't want to dedicate as much time to it any more. It's been fun for a while ^^

New features:

• TCP socket as input source (plot data from a TCP socket)
• Added incoming data rate estimator
• Minor visual changes
• Data size parameter is now individual per plot, not per plot type as before
• Scatter plot is now reset whenever an input channel is changed
• Config file is now versioned in order to be applied migrations in future releases
• Added program icon

Bug fixes:

• Fixed a crash caused by improper handling of objects when closing a plot
• Math components used to be loaded in the wrong order on startup; causing them to not be applied until math channel has been re-enabled
• Math component IDs were not as unique as expected, causing problems during component deletion

In addition, a bug causing scatter plot to crash the program on Ubuntu 16.04 and 18.04 is now magically gone, without any work being put into resolving it... Fun :D

It's been a while since the last release, but the program is slowly getting where I'd like it to be for my needs, so there's not much more to add. One last big change will come in the coming months: plot from network port. But I'll probably start working on it when I start needing it.

For now, there's new version with the following changes:

New features:

• Existing line plot channels are now preserved when adding new channel to the plot
• Tool-tips have been added to almost all UI elements, explaining UI functionality. When in doubt, hove rover a control to find out what it does
• Math channel components now resemble an equation, hopefully making it easier to understand
• Data-accumulation mode in line plot (data will be logged for as long as there's memory available - use with caution, can crash the program if there's no more memory available)

Bug fixes:

• Line plot was inserting data from the wrong side, causing the graph to move unnaturally
• Multiplication math operation was using in fact multiply by ABS() value, which is no more the case
• Hide unused UI elements (elements in the development)

A few more features have been added:

• Math functions now include ABS and multiplication
• Scatter plot shows channel names instead of generic 'Channel X'
• Few stability fixes

Internal logging is now fully functional, producing a log file every time the app is run and saving important events. By default, last 3 run logs are saved on the disk and rotated on every app startup. Should help with future debugging.

CI pipeline for ubuntu release was not include a libpng12 dependency, failing to run precompiled ubuntu package on anything apart from Ubuntu 16.04. Also fixed

Expanded pipeline to offer ubuntu-compatible version. Tests show that the same precompiled binary crashes on Ubuntu 16.04 and 18.04 when launching scatter plot, but not on Ubuntu 20.04. Very interesting...