feat: Initial macOS patcher (#677)

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## Scope

Adds a new patcher, specifically for macOS. Extracted from #676.

This can be refined as we go but it's a pretty solid start.

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issues fixed, or that are relevant to these changes. -->

## Test Plan

- Confirm that the patcher succeeds on the app store build of the game
- Confirm that the patcher succeeds on the steam build of the game

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## Checklist

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--------
#### General
- [x] I've run Prettier to format any changed files
- [x] I've verified that my changes work, and included a test plan

Author: RDIL

.github/workflows/patcher-darwin.yml

@@ -0,0 +1,30 @@
+name: Patcher (macOS)
+
+on:
+  push:
+    branches: [ "v*", "master" ]
+    paths: [ "patcher-darwin/**/*" ]
+  pull_request:
+    branches: [ "v*", "master" ]
+    paths: [ "patcher-darwin/**/*" ]
+
+jobs:
+  build:
+    name: Build macOS Patcher
+    runs-on: macos-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6.0.2
+
+      - name: Configure CMake
+        run: cmake -S patcher-darwin -B patcher-darwin/build -DCMAKE_BUILD_TYPE=Release -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+
+      - name: Build
+        run: cmake --build patcher-darwin/build --config Release
+
+      - name: Upload patcher-darwin
+        uses: actions/upload-artifact@v7
+        with:
+          name: patcher-darwin
+          path: patcher-darwin/build/PeacockPatcher

patcher-darwin/.idea/.gitignore

@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 3.20)
+project(PeacockPatcher LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 23)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_OSX_ARCHITECTURES "arm64")
+set(CMAKE_OSX_DEPLOYMENT_TARGET "15.0")
+
+add_executable(PeacockPatcher
+        src/main.cpp
+        src/process.cpp
+        src/memory.cpp
+        src/scanner.cpp
+        src/patcher.cpp
+        src/patches.cpp
+        src/patch_definitions/v3_260_1.cpp
+        src/version.cpp
+)
+
+target_include_directories(PeacockPatcher PRIVATE src)