helpers - Helper Tools

Practical helper functions and data manipulation tools:

1. capitalize.mdx - Capitalize the first letter of a word
2. pick.mdx - Deprecated selection function, recommend using pickone and pickset
3. pickset.mdx - Select multiple random elements from an array
4. pickone.mdx - Select one random element from an array
5. shuffle.mdx - Shuffle the order of an array
6. pad.mdx - Number padding functionality
7. set.mdx - Override default data sets
8. mixin.mdx - Mixin functionality, used to extend RandBox