Vcpkg manifest mode

[wmeulemans]

This pull requests contains changes made to allow for compilation via vcpkg manifest mode and msvc.

• The main readme was updated to reflect the new process with vcpkg.
• CMakePresets.json has been defined
• A template for CMakeUserPresets.json has been added, that can be modified to a particular local setup (see readme)
• MSVC seems to use a different type for filepaths, requiring an extra string() call in various places.
• GDAL's headers do not seem to be placed nicely in a common subfolder, so it's include was changed
• The main CMakeLists.txt has been modified to be a bit more generous in specifying include folders to ensure all libraries' headers are found