The aim of this kata is to split a given string into different strings of equal size (note size of strings is passed to the method)
Example:
Split the below string into other strings of size #3
'supercalifragilisticexpialidocious'
Will return a new string
'sup erc ali fra gil ist ice xpi ali doc iou s'
Assumptions:
String length is always greater than 0
String has no spaces
Size is always positive