Feature/add merge option csv

[theycallmejeano]

Description

• Adds a merge option to the csv output that allows the user to merge the results from multiple username searches into one file
• Adds a no--txt argument to suppress the creation of the txt file

Screenshots

Checking for output : csv merge, no txt
python3 sherlock barackobama michelleobama --csv --merge results/obamas_test --no-txt --site Facebook --site Twitter

Without merging or suppressing txt
python3 sherlock barackobama michelleobama --site Facebook --site Twitter --csv

How Has This Been Tested?

• Ran given unit tests

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

[theycallmejeano]

Hi @sdushantha, I was unable to tag a reviewer for this.
Thanks for sharing this tool. I've been using it for ~2 years and its served me well. I'm proposing this argument to the csv feature, to allow for output from multiple userames to be merged in one file. I found it helpful when searching for multiple usernames.

Happy to hear your thoughts on this

[matheusfelipeog]

A series of issues have addressed this in some way: #2263 #2602 #2603

Thank you.