Five new filters with tests

[BastiaanJansen]

I created several new filters:

Array:

• some: Determines whether the specified callback function returns true for any element of an array.
• every: Determines whether all the members of an array satisfy the specified test.

String:

• repeat: Repeats a given value an x amount of times
• reverse: Reverses a given string
• wrap: Wraps a string or number with a string