Add windows builds for x64 and x86

Author: kristjanvalur

.travis.yml

@@ -15,4 +15,16 @@ jobs:
         - sudo apt install -y qemu-user
       env: 
         - PLATFORM_PREFIX=arm-linux-gnueabi-
-        - EMULATOR=qemu-arm
+        - EMULATOR=qemu-arm
+    - os: windows
+      name: x64_msvc
+      script:
+        - "/c/Program Files (x86)/Microsoft Visual Studio/2017/BuildTools/Common7/Tools/VsDevCmd.bat"
+        - msbuild vc2019/stackman.sln /p:Platform=x64
+        - vc2019/x64/Debug/test.exe
+    - os: windows
+      name: x86_msvc
+      script:
+        - "/c/Program Files (x86)/Microsoft Visual Studio/2017/BuildTools/Common7/Tools/VsDevCmd.bat"
+        - msbuild vc2019/stackman.sln /p:Platform=x86
+        - vc2019/win32/Debug/test.exe