add kicking stats to ncaaf players

[AidanGlickman]

Fixes #373

Adds kicking stats (attempts and percentage) to NCAAF players.

Not sure how the previous PR #374 broke but here it is again?

[roclark]

Thanks @AidanGlickman for putting this together! This looks good! If you add the note about the percentage range for the one attribute, I can get this merged. Also, per your comments on #374 on testing, perhaps we could get this in a good position where it's ready to merge, and I can create another PR with an update to the testing suite, then merge them sequentially. How does that sound? Or would it be easiest if I create a branch upstream, and you base this PR off that branch to include the changes into a single commit? That might look more elegant in the end, but is a more involved process.

Either way, I can work on the testing changes on my end to get these changes included with the testing suite moving forward.

Thanks again for this PR! This is wonderful!

[roclark]

Hey @AidanGlickman, I added a branch which includes updates to the test files to properly include this with the testing suite. If you wouldn't mind, it would be great if you could copy the test file and updates I created and include them with this commit. It looks like everything passes the tests on my end, but I want to make sure you have the proper credit for this, so feel free to copy everything as-is.

Let me know if you have any questions or concerns. Otherwise, once the tests are included, I will merge this and include it with my upcoming release!

[AidanGlickman]

Sounds good! I went ahead and added them to the commit. I look forward to contributing more where I can!

[roclark]

Thanks again @AidanGlickman! This looks great and I will merge it! Thank you very much for the addition and for the changes! I will work on cutting a new release now so this can be included with all new binary pulls.