Log message:
lua-luv: update to 1.41.0

Changes:
    Updated Libuv to 1.41.0
    Fix/add support for Lua 5.4
    CMake: Only require finding Lua libs via find_package on Windows
    fs_{read,write}: make offset argument optional and default it to -1
    Add udp_set_source_membership binding + improve udp_set_membership
    Add pipe_chmod binding
    Add process_get_pid binding
    Add handle_get_type and req_get_type
    Add method form of uv.cancel: req:cancel()
    Add loop_configure binding
    Fix garbage collection-related memory bug with threads
    fix install path for make install with Luajit 2.1
    Fix args potentially being garbage collected before use in luv_spawn
    fix bug in luv_check_fs
    Add uv.loop_mode function
    Add BUILD_STATIC_LIBS to Makefile
    fix a memry bug in thread pool work callback
    Fix possible memory leak in lhandle.c
    fix memleaks in luv_cpu_info
    fs: Print destination paths in error messages for the relevant functions
    Make symlink/copyfile bindings more user-friendly
    Fix shared library build failure on macOS

Log message:
devel: Add lua-luv. Based on work by Jonathan Buschmann in wip.

This library makes libuv available to lua scripts.  It was made for the
luvit project but should usable from nearly any lua project.