message: feat(itk-js-vtk): Add DiceHub VTK Rendering patch
  From:
diff: @@ -5,8 +5,9 @@ WORKDIR /
  # Work-around for VTK HDF5 build
  ENV CMAKE_TOOLCHAIN_FILE ${CMAKE_TOOLCHAIN_FILE_DOCKCROSS}
  -# 2019-01-03 + Emscripten patches
  -ENV VTK_GIT_TAG 32476744d0783a63c49a9e1cc1107a91f707275e
  +# 2019-01-03 + Emscripten patches + DiceHub EGL patch
  +ENV VTK_GIT_TAG 7ed51dceea648b99ac5e778d2808f77ea91be4a9
  +ENV CXXFLAGS="${CXXFLAGS} -s USE_FREETYPE=1"
  RUN git clone https://github.com/thewtex/VTK.git && \
  cd VTK && \
  git checkout ${VTK_GIT_TAG} && \
  @@ -25,6 +26,11 @@ RUN git clone https://github.com/thewtex/VTK.git && \
  -DH5_HAVE_GETPWUID:BOOL=OFF \
  -DModule_vtkIOExport:BOOL=ON \
  -DVTK_NO_PLATFORM_SOCKETS:BOOL=ON \
  + -DModule_vtkRenderingContextOpenGL2:BOOL=OFF \
  + -DVTK_USE_SYSTEM_FREETYPE:BOOL=ON \
  + -DFREETYPE_INCLUDE_DIRS:PATH=include \
  + -DFREETYPE_LIBRARY:STRING=freetype \
  + -DH5_HAVE_GETPWUID:BOOL=OFF \
  ../VTK && \
  ninja -j7 && \
  find . -name '*.o' -delete && \
  