Feature: Add auto-updater

[Linkaaaaa]

Add auto version updater similar to Knox's in game updater

[knoxfighter]

You can use the code we use :)
You just need two files as base:

• UpdateCheckerBase.h
• UpdateCheckerBase.cpp

There is also a googletest for it: UpdateCheckerTest.cpp

Dependencies are nlohman-json and cpr. The cpr dependency can be removed by setting the macro ARCDPS_EXTENSION_NO_CPR. If you set that macro, you have to implement GetLatestRelease and HttpDownload yourself.

The code for the ImGui window can be found in UpdateChecker.cpp. Which has a lot of dependencies in the extensions repo (UpdateChecker.h)