add better error handling for processes whose memory can't be read

[binary1230]

Win10, when hitting Refresh in the GUI, was getting an exception here of "Failed to read process memory", which was unhandled and caused the app to crash. https://github.com/wh0am15533/SharpMonoInjector/blob/ae35e071a4ad56caf5aba390a9fc09a17e29d9a7/SharpMonoInjector/Memory.cs#L62

Weirdly, this is for an unrelated EXE I didn't care about - JetBrains.ReSharper.Host64.exe (my Jetbrains visual studio plugin)

This PR catches exceptions like this, logs them, and skips the offending EXE. With it in place, I can pick up the EXE I care about and things go well from there.

I also modified the logging to reduce code copy+paste.

I could have made this PR a little cleaner and separated the logging cleanup from the exception handling but.... :shrug: If that's an issue, let me know I'll clean it up.

Thanks! Btw, ever consider doing releases here on Github instead of on the forum? Just easier to deal with, unless there's a reason to keep it on the forum.

-Dom