Use subprojects dir instead of contrib #339
Description
Been struggling for a bit with the build until I realised tinyendian.wrap is not placed inside subprojects. From the meson documentation:
All new projects should not set this but instead use the default value. It should be noted that this keyword argument is ignored inside subprojects. There can be only one subproject dir and it is set in the top level Meson file.
Being D-YAML a library it's obviously going to be used as a subproject (at least it is in my case), which causes Meson to act funny. Please consider removing the subproject_dir option in the meson.build file and renaming contrib to subprojects.