Breaking

• Luv.Resource.free_memory and Luv.Resource.total_memory now return options, in accordance with a clarification in libuv (#153).
• Filename in callback of Luv.FS_event.start can be None, in accordance with a clarification in libuv (#155).
• Rename fields of Luv.Time.timeval (dbd4e43).

Additions

• Upgrade libuv to 1.48.0, including 1.47.0, 1.46.0, 1.45.0 and io_uring support (#153, #154, #155, #158).
• Expose uv_cpumask_size as Luv.System_info.cpumask_size, uv_thread_setaffinity as Luv.Thread.setaffinity, uv_thread_getaffinity as Luv.Thread.getaffinity (#153).
• Expose UV_ENODATA as `ENODATA (#153).
• Expose uv_metrics_info as Luv.Metrics.info (#153).
• Expose uv_thread_getcpu as Luv.Thread.getcpu (#153).
• Expose uv_get_available_memory as Luv.Resource.available_memory (#153).
• Expose uv_os_get_passwd2 as ?uid parameter of Luv.Passwd.get_passwd (#153).
• Expose uv_os_get_group as Luv.Passwd.get_group (#153).
• Expose uv_clock_gettime as Luv.Time.clock_gettime (#153).
• Expose uv_pipe_bind2 and uv_pipe_connect2 as ?no_truncate parameters of Luv.Pipe.bind and Luv.Pipe.connect (#154).
• Expose EUNATCH as `EUNATCH (#154).
• Expose UTF-16/WTF-8 conversion functions in new module Luv.String (#155).
• Expose uv_thread_setpriority as Luv.Thread.setpriority and uv_thread_getpriority as Luv.Thread.getpriority (#158).
• Expose UV_PROCESS_WINDOWS_FILE_PATH_EXACT_NAME as ?windows_file_path_exact_name parameter of Luv.Process.spawn (#158).