slpz v0.1

Added output path flag, input from stdin, output to stdout, and crash fixes.

Usage: slpz [OPTIONS] <input path>

Options:
  --fast                Prefer speed over compression [Default]
  --small               Prefer compression over speed
  -x, --compress
  -d, --decompress
  -r, --recursive       Compress/decompress all files in subdirectories.
  -k, --keep            Keep files after compression/decompression. [Default]
  --rm                  Remove files after compression/decompression.
  -q, --quiet           Do not log to stdout.
  -o, --output <file>   Specify output file. Pass '-' for stdout. Pass '-' as the input path for stdin.
  -h, --help
  -v, --version