Update upstream dependencies, consider re-doing your customizations on top of the original code instead.

[robertbaker]

You changed the code-style of the original code which makes merging upstream changes a lot harder on yourself.
In one case, IMO get => TimeSpan.Milliseconds; is more readable than what you changed it to:

get
{
    return TimeSpan.Milliseconds;
}

You can refactor your modifications so you override functionality and thus you can use the upstream nuget package and make updates a lot easier for those dependencies. Git submodules can be utilized if you must have a clone of the code in your project.

[Tentacule]

External libse/tesseract projects have been replaced by their nuget packages.