Upgrading plugins was broken for various reasons. There are four
fixes and a minor one:
1. Use a directory name based only on the `Name` of the plugin, not
the source filename, which contains the version. Avoids strange
duplication of the plugin.
2. Use the new directory name for the deletes if it's present, so
that installation and removal happen at that directory level
and we don't leave empty folders laying around. Ensures we
properly remove additional resources in plugins too, not just
the main `.dll` file.
3. Ignore the incoming `target` when installing, and always set
it ourself to the proper directory, which would matter when
reinstalling.
4. Deletes an existing target directory before installing if it
exists. Note that not calling any of the plugin removal code
is intentional; I suspect that would delete configurations
unexpectedly when upgrading which would be annoying. This way,
it just replaces the files and then reloads.
5. (Minor) Added some actual debug messages around the plugin
download section so failures can be more accurately seen.
This makes resolving dependencies from the container much easier as
you cannot resolve with primitives parameters in a way that is any
more readable.
The aim of this commit is to change as little as possible with the end
result, loggers that were newed up for the parent object were given the same
name. Objects that used the base or app loggers, were given a new logger with
an appropriate name.
Also removed some unused dependencies.
Add Argument*Exceptions now use proper nameof operators.
Added exception messages to quite a few Argument*Exceptions.
Fixed rethorwing to be proper syntax.
Added a ton of null checkes. (This is only a start, there are about 500 places that need proper null handling)
Added some TODOs to log certain exceptions.
Fix sln again.
Fixed all AssemblyInfo's and added proper copyright (where I could find them)
We live in *current year*.
Fixed the use of braces.
Fixed a ton of properties, and made a fair amount of functions static that should be and can be static.
Made more Methods that should be static static.
You can now use static to find bad functions!
Removed unused variable. And added one more proper XML comment.
