* move orders out of examples directory
* install orders into library dir
* read orders from new library dir
* update documentation
* update dreamfort references to orders import
* update changelog
* ignore json files in pre-commit
This makes jsoncpp a submodule that can be build directly from git
sources. This changes depends/jsoncpp to depends/jsoncpp-sub to avoid
filename conflict if someone tries to use git bisect.
jsoncpp library name changes to jsoncpp_lib_static.
jsoncpp version is the latest tagged release.