Add beam command line interface

[PeterKraus]

Depends on #3.

Adds beam CLI with the following interface:

(beam) PS C:\Users\Kraus\Code\datatractor\beam> beam
usage: beam [-h] [--version] [--outfile OUTFILE] filetype infile
beam: error: the following arguments are required: filetype, infile

usage: beam [-h] [--version] [--outfile OUTFILE] filetype infile

positional arguments:
  filetype              FileType.ID of the input file
  infile                Path of the input file

options:
  -h, --help            show this help message and exit
  --version             show program's version number and exit
  --outfile OUTFILE, -o OUTFILE
                        Optional path of the output file