examples: move SDL examples from vlib to examples dir

.github/workflows/ci.yml

@@ -212,10 +212,13 @@ jobs:
     #- uses: actions/setup-node@v1
     #  with:
     #    node-version: 12.x
+    - name: Install dependencies
+      run: |
+        git clone --depth=1 https://github.com/ubawurinna/freetype-windows-binaries.git thirdparty/freetype/
+        .\.github\workflows\windows-install-sdl.bat
     - name: Build
       run: |
         gcc --version
-        git clone --depth=1 https://github.com/ubawurinna/freetype-windows-binaries.git thirdparty/freetype/
         .\make.bat -gcc
     - name: Test
       run: |
@@ -235,11 +238,14 @@ jobs:
     #- uses: actions/setup-node@v1
     #  with:
     #    node-version: 12.x
+    - name: Install dependencies
+      run: |
+        git clone --depth=1 https://github.com/ubawurinna/freetype-windows-binaries.git thirdparty/freetype/
+        .\.github\workflows\windows-install-sdl.bat
     - name: Build
       run: |
         echo %VFLAGS%
         echo $VFLAGS
-        git clone --depth=1 https://github.com/ubawurinna/freetype-windows-binaries.git thirdparty/freetype/
         .\make.bat -msvc
     - name: Test
       run: |

.github/workflows/windows-install-sdl.bat

@@ -0,0 +1,16 @@
+@echo off
+
+curl -L https://www.libsdl.org/release/SDL2-devel-2.0.10-VC.zip -o SDL2.zip
+curl -L https://www.libsdl.org/projects/SDL_ttf/release/SDL2_ttf-devel-2.0.15-VC.zip -o SDL2_ttf.zip
+curl -L https://www.libsdl.org/projects/SDL_image/release/SDL2_image-devel-2.0.5-VC.zip -o SDL2_image.zip
+curl -L https://www.libsdl.org/projects/SDL_mixer/release/SDL2_mixer-devel-2.0.4-VC.zip -o SDL2_mixer.zip
+
+unzip SDL2.zip -d thirdparty/
+unzip SDL2_ttf.zip -d thirdparty/
+unzip SDL2_image.zip -d thirdparty/
+unzip SDL2_mixer.zip -d thirdparty/
+
+mv thirdparty/SDL2-2.0.10 thirdparty/SDL2
+mv thirdparty/SDL2_ttf-2.0.15 thirdparty/SDL2_ttf
+mv thirdparty/SDL2_image-2.0.5 thirdparty/SDL2_image
+mv thirdparty/SDL2_mixer-2.0.4 thirdparty/SDL2_mixer