Add win build for CI

scripts/build_win_exiv2.bat

@@ -0,0 +1,28 @@
+@ECHO OFF
+SETLOCAL
+SET TOP=%CD%
+SET PREFIX=%CD%\clib
+SET PKG_CONFIG_DIR=%PREFIX%\lib\pkgconfig
+SET PATCH_DIR=%CD%\exif\patchs
+IF NOT EXIST cbuild (
+    MD cbuild || EXIT /B 1
+)
+CD cbuild || EXIT /B 1
+git clone --depth 1 'https://github.com/Exiv2/exiv2' || EXIT /B %ERRORLEVEL%
+CD exiv2 || EXIT /B %ERRORLEVEL%
+git apply %PATCH_DIR%\basicio.cpp.patch || EXIT /B %ERRORLEVEL%
+IF NOT EXIST build (
+    MD build || EXIT /B 1
+)
+CD build || EXIT /B 1
+cmake ^
+    -G Ninja ^
+    -DCMAKE_PREFIX_PATH=%PREFIX% ^
+    -DCMAKE_BUILD_TYPE=Release ^
+    -DCMAKE_INSTALL_PREFIX=%PREFIX% ^
+    -DINSTALL_PKGCONFIG_DIR=%PKG_CONFIG_DIR% ^
+    ../ || EXIT /B %ERRORLEVEL%
+cmake --build . --config Release && cmake --build . --config Release --target INSTALL ^
+    || cmake --build . --config Release && cmake --build . --config Release --target INSTALL ^
+    || EXIT /B %ERRORLEVEL%
+ENDLOCAL