ci: add github actions workflow

.github/workflows/build.yml

@@ -0,0 +1,50 @@
+name: SporeModLoader
+
+on: [push, pull_request]
+
+jobs:
+  Windows:
+    runs-on: windows-2022
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: 'true'
+      - uses: ilammy/msvc-dev-cmd@v1
+      - name: Build Detours
+        run: |
+          cd "3rdParty\Detours"
+          set CL=/MP
+          set DETOURS_TARGET_PROCESSOR=x86
+          nmake
+      - name: Build minizip-ng
+        run: |
+          cmake -S "3rdParty\minizip-ng" -B "3rdParty\minizip-ng\build" -A Win32 ^
+            -DMZ_LZMA=OFF -DMZ_ZSTD=OFF ^
+            -DMZ_BZIP2=OFF -DMZ_PKCRYPT=OFF ^
+            -DMZ_WZAES=OFF -DMZ_SIGNING=OFF ^
+            -DMZ_DECOMPRESS_ONLY=ON ^
+            -DCMAKE_POLICY_DEFAULT_CMP0091=NEW ^
+            -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded ^
+            -DCMAKE_BUILD_TYPE=Release
+          cmake --build "3rdParty\minizip-ng\build" --config Release
+      - name: Build Spore-ModAPI
+        run: |
+          msbuild "3rdParty\Spore-ModAPI\Spore ModAPI" ^
+            /t:BuildDlls ^
+            /p:BuildVer=280 ^
+            /p:Config=Release ^
+            /p:Platform=Win32 ^
+            /m
+      - name: Build SporeModLoader
+        run: |
+          msbuild "%CUR_DIR%\SporeModLoader" ^
+            /p:Configuration=Release ^
+            /p:Platform=Win32 ^
+            /m
+      - name: Build SporeModManager
+        run: |
+          msbuild "%CUR_DIR%\SporeModManager" ^
+            /p:Configuration=Release ^
+            /p:Platform=Win32 ^
+            /m
+      # TODO: package