Enable GitHub CI/CD Processes

[MrGrymReaper]

@Nevcairiel I was wondering whether it is worth considering setting up the features of GitHub required for CI/CD processes in this project. As it would aid in the process of creating updates of the LAV Filters, it would also allow for the possibility of automated submission to publishing locations like possibly MediaPortal, Nuget and also onto the releases section of this GitHub project.

It can also thus enable the potential to consider contacting GitHub to see what there is for open source viability on GitHub Code Spaces feature. A very powerful and useful feature if there's lots of dependencies in any part of creating LAVFilters it would be capable of enabling, contributions utilising virtually any device.

This would allow for a much easier development cycle, though the file/folder project structure will need adaptation. Including support for Visual Studio Code (and/or Visual Studio 2019) as currently it seems to only be including support for Visual Studio 2017.