* chore(CI): speed up CI by using ninja and parallel build
* chore(CI): align compiler for c and cxx
* fix(samples): add dependency to generator
* fix(cmake): get rid of file glob
* chore(CI): use clang on mac
glfw don't support gcc on mac
* fix(sample): add depencency on build_vulkan_hpp
* fix(cmake): make sure every target in tests and samples link to utils
* Add samples SecondaryCommandBuffer and SeparateImageSampler.
+ made some helper functions more explicit.
* Add sample Template, some generalizations in utils, some minor improvements in various samples.