Add Rogue Collection install script

[devin-ai-integration]

Summary

New port scriptmodule scriptmodules/ports/roguecollection.sh building Rogue-Collection (six classic Rogue versions + Rog-O-Matic, Qt5/QML frontends) from source, plus a README entry.

Upstream's src/makefile doesn't build with modern gcc/Qt, so sources_ patches it before build_:

• -Uunix — unix is a predefined macro in gnu++ mode, and Rogue_PC_Core/text.cpp declares bool unix = ...
• -fcommon on the C targets — gcc 10+ otherwise fails with multiple definition of 'release' (vers.o vs extern.o)
• -Werror → -Wno-deprecated-declarations in the .pro files — QFontMetrics::width is deprecated in Qt 5.15

Both frontends are installed, so two ports are registered:

addPort "$md_id" "roguecollection"      "Rogue Collection"       "XINIT:$script rogue-collection"        # lightweight
addPort "$md_id" "retroroguecollection" "Retro Rogue Collection" "XINIT:$script retro-rogue-collection"  # CRT effects

The launch script pushdes into $md_inst because the games are dlopened as ./lib-rogue-*.so and res/, data/ and rogue.opt are all resolved relative to the working directory; $md_inst is chowned to $user so saves and options can be written.

Verified end to end on x86_64: clean clone + the exact sed patches + make produces rogue-collection and retro-rogue-collection, and the binary launches without errors.

Link to Devin session: https://app.devin.ai/sessions/a11653530b7540d0943134b04989960c
Requested by: @Exarkuniv

[devin-ai-integration]

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