Initial cosmotop release

This is the first release of cosmotop, a fork of btop++ v.1.4.0 and btop4win v1.0.4.

Major changes from the upstream btop projects:

• Single-executable distribution supporting Linux, MacOS, Windows, FreeBSD, NetBSD, and OpenBSD using Cosmopolitan Libc
• Merge code from btop++ and btop4win to unify both tools into one project

Full Changelog: https://github.com/bjia56/cosmotop/commits/v0.1.0