Modloader should probably be a shared library that chainloads mods

[j005u]

Rather than loading each modification as a .so individually modloader should be the only thing getting LD_PRELOADED and it should chainload the mods.

A naive approach of dl_open() on each of the .so-s does not work because the symbols don't become visible to the necessary context. Attempts at setting the context properly have failed because our related headers don't have the necessary GNU extensions.

This would allow for better error management and probably many other benefits.