Refactors the PatchAllowlistTest to streamline the experience for developers. Instead of a textual description of what needs to change in ApprovedInis.json for RetroAchievements compatibility, the test will now generate a replacement file and instruct the coder where to copy it in their local branch, and what to update APPROVED_LIST_HASH to. The result should be easier and more instructive for developers to make changes, while still maintaining that allowed codes cannot be added or modified without recompiling Dolphin.
As ApprovedInis.json no longer needs to be user-readable for this process, it no longer contains titles or pretty formatting and as such is updated in this commit, hash included.