(macOS) Use macOS-provided install_name_tool utility to modify headers
on collected binaries: change the dylib identifier to @rpath/<name>.dylib,
rewrite paths to linked non-system shared libraries to @rpath/<dependency>,
remove any additional rpaths and add an rpath pointing to the application's
top-level directory, relative to the @loader_path. Previously, the
header modification was performed using macholib and was limited
only to modification of dylib identifier and paths to linked non-system
shared libraries.