message: Add extension to cmake and cpack for windows builds
diff: @@ -252,9 +252,9 @@ def doBuildWindows(String buildType, boolean isUWP, String arch) {
  dir('build-dir') {
  runAndCollectWarnings(parser: 'msbuild', isWindows: true, script: """
  - cmake ${cmakeDefinitions} -DREALM_BUILD_LIB_ONLY=1 -G \"Visual Studio 14 2015${archSuffix}\" -D CPACK_SYSTEM_NAME=${isUWP?'UWP':'Windows'}-${arch} -D CMAKE_BUILD_TYPE=${buildType} -D REALM_ENABLE_ENCRYPTION=OFF ..
  - cmake --build . --config ${buildType}
  - cpack -C ${buildType} -D CPACK_GENERATOR=TGZ
  + cmake.exe ${cmakeDefinitions} -DREALM_BUILD_LIB_ONLY=1 -G \"Visual Studio 14 2015${archSuffix}\" -D CPACK_SYSTEM_NAME=${isUWP?'UWP':'Windows'}-${arch} -D CMAKE_BUILD_TYPE=${buildType} -D REALM_ENABLE_ENCRYPTION=OFF ..
  + cmake.exe --build . --config ${buildType}
  + cpack.exe -C ${buildType} -D CPACK_GENERATOR=TGZ
  """)
  archiveArtifacts('*.tar.gz')
  if (gitTag) {
  