Janet 1.24.0

• Add FFI support to 64-bit windows compiled with MSVC
• Don't process shared object names passed to dlopen.
• Add better support for windows console in the default shell.c for auto-completion and
  other shell-like input features.
• Improve default error message from assert.
• Add the tabseq macro for simpler table comprehensions.
• Allow setting (dyn :task-id) in fibers to improve context in supervisor messages. Prior to
  this change, supervisor messages over threaded channels would be from ambiguous threads/fibers.