Enhancement - JSON.ArraySlice

[mw777eds]

Added function written by Steve Allen at RCC (with his permission) to return a slice of a JSON array including tests.
JSONAdditions.fmp12.zip

[steveAllen0112]

I didn't realize there was a GitHub repo for this or I would have submitted it myself. Thanks, @mw777rcc ! :)

[steveAllen0112]

Ok, I've forked the project and updated all the docs and the file itself, in case a Pull Request would be welcome. (The contributing guide says, "No pull requests", so I'll not create one unless you want me to, @toddgeist .)

[toddgeist]

Hi Steve and Mike.

Thanks for the contribution

The reason for no pull requests is that we can't actually merge the FileMaker file. So it doesn't work very well. So the method we use is it to generate the docs from the comments in the test file.

@mw777rcc file has everything we need to merge this.

[steveAllen0112]

Awesome. That makes sense. Now if only FM would give us a way of patching stuff in. ;)