Add SDLPoP Wii

[OiJorgeLucas]

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Adds SDLPoP Wii 1.0, a Nintendo Wii port of SDLPoP.

The Wii port is based on the open-source SDLPoP project by Dávid Nagy and contributors. The release package is hosted on GitHub Releases and already follows the standard Homebrew Channel layout at apps/sdlpop/.

The package is derived from the files distributed by the upstream SDLPoP project together with the Wii-specific port changes, and does not download or obtain any external commercial game files.

Project repository:
https://github.com/OiJorgeLucas/SDLPoP-Wii

WiiBrew page:
https://wiibrew.org/wiki/SDLPoP_Wii

Upstream SDLPoP:
https://github.com/NagyD/SDLPoP