Add command-line argument support for input and output files

[julianharty]

Context

We now have at least 3 scripts that read content from input files and write updated and additional content to output files. Currently these filenames are often hardcoded in the scripts, this makes the scripts less flexible for users who may wish to use different inputs, etc.

Let's add command-line options, with the current filenames as default values, to the processing scripts in the ./src folder. Let's also update the repo's README to document the new capabilities.

[tnzmnjm]

• Added 2 parser flags : --input-file and --output-file to the src/github_repo_request_local.py
• parser.add_argument( '--input-file', type=str, default='./data/original_github_df.csv', help='Path to the input CSV file containing repository URLs ' '(default: ./data/original_github_df.csv)' ) parser.add_argument( '--output-file', type=str, default='./data/updated_local_github_df_test_count.csv', help='Path to output CSV file to store updated repository data ' '(default: ./data/updated_local_github_df_test_count.csv)' )
• Amended the script to use these flags
• added these flags as parameters in my pycharm
• still using the default paths although I have created a new directory and put the input df in that

[tnzmnjm]

• changed the flags `parser.add_argument( "--input-file", type=str, default=str(Path("data/original_github_df.csv")), help="Path to the input CSV file." )

  parser.add_argument( "--output-file", type=str, default=str(Path("data/updated_local_github_df_test_count1.csv")), help="Path to the output CSV file." )`

• Amended the script to use these flags
• added these flags as parameters in my pycharm (--input-file data/test/original_github_df.csv --output-file data/test/updated_local_github_df_test_count.csv)
• script works as expected
• This change will be part of the PR #50
• to do: will need to consider the path to save the final .ttl and listing of test files

[tnzmnjm]

• I have added 2 flags for the script src/github_repo_request_local.py : -- --ttl-file -- --test-file-list

• I have also added argparse flags to the script utils/initial_data_preparation.py . The flags are: -- --input-file -- --output-folder