Add Objective-C Tests

[rzuckerm]

Congrats on taking the first step to contributing to the Sample Programs repository maintained by The Renegade Coder!
For simplicity, please make sure that your pull request includes one and only one contribution.

Please fill one of the sections below as applicable.
Please also add any other relevant information to the Notes section at the bottom.
You may delete or just ignore any other sections.
For more information please refer to our contributing documentation

I Am Adding New Tests for a Language

• I fixed Add Objective-C Testing #3647
• I named the pull request using Add {LANGUAGE} Tests format
• I added a testinfo.yml files (see contributing documentation)
  • I used an officially supported docker image or one that I personally trust
• I verified all tests are passing

Other Notes

I had to change every sample program in Objective-C to get the tests to pass. I tried to keep the existing logic as close as possible. One of the main changes is going from NSLog to printf in order to remove the timestamps the NSLog does. I had to add input parsing and validation. I use ChatGPT to help out with that since I've never programmed in Objective-C. Finally, I had to change @autoreleasepool to NSAutoreleasePool and drain to fix compiler errors since @autoreleasepool is only available with clang, and I used gcc.

It might be easier to review this ignoring whitespace changes.

[jrg94]

I imagine this was a nightmare. I think I tried to do this one a few times in the past, but the language is so ugly I had to stop. 😆