[ADD EXAMPLE] Loops

[jeremydouglass]

URL of task

There are a large number of "Loops" tasks. One has a code snippet:

• https://rosettacode.org/wiki/Loops/For#Processing

...and many do not:

• Loop over multiple arrays simultaneously
• Loops/Break
• Loops/Continue
• Loops/Do-while
• Loops/Downward for
• Loops/For
• Loops/For with a specified step
• Loops/Foreach
• Loops/Increment loop index within loop body
• Loops/Infinite
• Loops/N plus one half
• Loops/Nested
• Loops/While
• Loops/with multiple ranges
• Loops/Wrong ranges

These should probably be considered and submitted together -- some could be merged or eliminated.

Next steps

Create and submit a fully commented Processing sketch based on the linked example -- either as an issue comment or as a pull request. See CONTRIBUTING.md for details.