Write a function to return a boolean that indicates if two strings are one edit away from being identical. The function should take in 2 strings and return a boolean. The definition of an "edit" is as follows:
- Insert one character
- Remove one character
- Replace one character
A few examples of inputs and the function result are listed below.
- OneEditAway("pea", "peas") = True
- OneEditAway("pea", "fleas") = False
- OneEditAway("pea", "lea") = True
- OneEditAway("pea", "seas") = False