project: migrate to vs2017

.gitignore

MSVC/ring-daemon.vcxproj

MSVC/ring-daemon.vcxproj.filters

contrib/build_all.bat

contrib/src/argon2/argon2-uwp.patch

contrib/src/argon2/fetch_and_patch.bat

contrib/src/fetch_all.bat

contrib/src/ffmpeg/fetch_and_patch.bat

contrib/src/ffmpeg/ffmpeg-uwp.patch

contrib/src/ffmpeg/windows-no-pkg-config.patch

contrib/src/ffmpeg/windows-uwp-x64-configure-make.sh

contrib/src/gmp/fetch_and_patch.bat

contrib/src/gmp/gmp-uwp.patch

contrib/src/gmp/gmp_addaddmul_1msb0.patch

contrib/src/gnutls/fetch_and_patch.bat

contrib/src/gnutls/gnutls-uwp.patch

contrib/src/iconv/fetch_and_patch.bat

contrib/src/iconv/libiconv-uwp.patch

contrib/src/jsoncpp/fetch_and_patch.bat

contrib/src/jsoncpp/jsoncpp-uwp.patch