added an example with the name line2ss_function.py that:

[Yuksel-Rudy]

1. creates a MoorPy system,
2. calls the lines2ss function in helpers, and
3. plot the results before and after

Purpose

Added an example that highlights the functionality of using lines2ss function in helpers.py

Type of change

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (non-backwards-compatible fix or feature)
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Documentation update
• Maintenance update
• Other (please describe)

Testing

Run the example with the input file it calls in the same folder.

Checklist

• I have run existing tests which pass locally with my changes
• I have added new tests or examples that prove my fix is effective or that my feature works
• I have added necessary documentation

[mattEhall]

Closing since these contributions have been included through another commit.