windows: move config.yml and games.yml to /config/, move log files to /log

[Megamouse]

• Moves games.yml to /config
• Moves config.yml to /config
• Moves log files to /log
• Simplifies a bunch of #ifdef _WIN32 code

This moves the old file to the new location if there isn't a file already.

fixes #16478

[Megamouse]

I've added the code for the log move.
It needs to be discussed by staff whether or not this should get merged.

[digant73]

is the lock file RPCS3.buf related to log file? if so, it seems not moved on log folder

[Megamouse]

No, why would it?

[digant73]

No, it doesn't need to be moved to log folder if it is not related to log. Just asked to understand which module is using RPCS3.buf. If it is a lock file for the executable then (IMO) it is ok to leave it there

[schm1dtmac]

Any reason why this rearrangement is Windows-only, other than I guess the fact that RPCS3 binaries and configs on windows are all stored together in one loose folder unlike macOS/Linux/etc?

[Megamouse]

Because on other OSs there already exists a specified config folder.