add first recipes

Author: hunterk

.github/workflows/win64_dolphin.yml

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+name: Dolphin-libretro Windows x86_64
+
+on:
+  push:
+    branches:
+      - master
+  watch: # this is a hack that lets repo owners trigger a build by starring
+    types: [started]
+    if: github.actor == github.event.repository.owner.login
+
+jobs:
+  Windows:
+    name: Build for Windows
+    runs-on: windows-latest
+
+    steps:
+    - name: Get latest CMake
+      uses: lukka/get-cmake@latest
+    - name: Checkout source
+      run: git clone https://github.com/libretro/dolphin.git && cd dolphin && git submodule update --init
+    - name: Build libretro dolphin core
+      working-directory: dolphin
+      run: mkdir build && cd build && cmake.exe -DLIBRETRO=ON -DENABLE_QT=0 -DCMAKE_BUILD_TYPE=Release -DCMAKE_VERBOSE_MAKEFILE=ON ..
+
+    - name: Build the thing
+      working-directory: dolphin/build
+      run: cmake.exe --build . --target dolphin_libretro --config Release
+
+    - name: Prep for release
+      working-directory: dolphin/Binary
+      run: Compress-Archive -CompressionLevel Optimal -Path dolphin_libretro.dll -DestinationPath ..\..\dolphin_libretro.dll.zip
+    - name: Create new release
+      uses: marvinpinto/action-automatic-releases@latest
+      with:
+        repo_token: ${{ secrets.GITHUB_TOKEN }}
+        automatic_release_tag: Windows_64-bit
+        prerelease: false
+        title: Windows x86_64
+        files: dolphin_libretro.dll.zip
+    - name: Save artifact
+      uses: actions/upload-artifact@v2
+      with:
+        name: dolphin_libretro.dll.zip
+        path: dolphin_libretro.dll.zip

.github/workflows/win64_melonds.yml

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+name: MelonDS-libretro Windows x86_64
+
+on:
+  schedule:
+    - cron: '0 2 * * *' # run at 2 AM UTC
+  watch: # this is a hack that lets repo owners trigger a build by starring
+    types: [started]
+    if: github.actor == github.event.repository.owner.login
+
+jobs:
+  Windows:
+    name: Build for Windows via cross-compile
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Install needed packages
+      run: sudo apt install wget git build-essential mingw-w64 mingw-w64-x86-64-dev mingw-w64-tools
+    - name: Checkout source
+      run: git clone https://github.com/libretro/melonds.git && cd melonds && git submodule update --init
+    - name: Build libretro melonds core
+      working-directory: melonds
+      run: |
+        make CC=/usr/bin/x86_64-w64-mingw32-gcc CXX=/usr/bin/x86_64-w64-mingw32-g++ platform=win HAVE_THREADS=1 HAVE_OPENGL=1 JIT_ENABLED=1 LDFLAGS+=-lopengl32 LDFLAGS+=-lws2_32 -j8
+        strip -s melonds_libretro.dll
+        zip -9 ../melonds_libretro.dll.zip melonds_libretro.dll
+    - name: Create new release
+      uses: marvinpinto/action-automatic-releases@latest
+      with:
+        repo_token: ${{ secrets.GITHUB_TOKEN }}
+        automatic_release_tag: Windows_64-bit
+        prerelease: false
+        title: Windows x86_64
+        files: melonds_libretro.dll.zip
+    - name: Save artifact
+      uses: actions/upload-artifact@v2
+      with:
+        name: melonds_libretro.dll.zip
+        path: melonds_libretro.dll.zip