Implement Basic Procedure for Argument Parsing (Refined)

[rennsax]

Refined PR for #12. Avoid breaking changes.

We don't need the record type, as it incurs expensive overheads. Currently we only need a list to store all operands (reversely).

[rennsax]

Examples:

$ scheme --script ./run.ss --help
Usage:
  ./run.ss --help | -h
  ./run.ss [input-port] [output-port] [log-path]

Arguments:
  input-port                Port to read messages (default: stdin)
  output-port               Port to write messages (default: stdout)
  log-path                  Path to write log output (default: null)

Example Usage:
  ./run.ss /path/to/scheme-langserver.log

$ scheme --script ./run.ss -a
Unrecognized option: a
Usage:
  ./run.ss --help | -h
  ./run.ss [input-port] [output-port] [log-path]

Arguments:
  input-port                Port to read messages (default: stdin)
  output-port               Port to write messages (default: stdout)
  log-path                  Path to write log output (default: null)

Example Usage:
  ./run.ss /path/to/scheme-langserver.log