Conflicts:
	single_include/nlohmann/json.hpp

Simple ordered_json that works on all supported compilers

Co-authored-by: Niels Lohmann <niels.lohmann@gmail.com>

Add pkg-config file

Make assert configurable via JSON_ASSERT

The meson builds install a pkg-config file, but the cmake builds don't.
This adds a pkg-config file to the cmake builds that is functionally
equivalent to the one generated from meson.

Fix regression from #2181

Add specialization of get_to

Refine documentation of error_handler parameter

Simplify conversion from/to custom types

Remove unused typedefs

Add option to ignore comments in parse/accept functions