feat: skip lines for csv files

[shibba-96]

Adds enhancement #393

Summary

• Ability to pass in parameter --skip_lines as a way to entirely skip the first x rows from the CSV

Test plan

• Tested input using CSV with parameter into Snowflake destination via scripts/build.sh and running it with ./sling.
• Wrote test on csv_test.go, but have not run it due to compilation issues on queue_test.go

./queue_test.go:553:9: undefined: functions