added sounds folder and some sounds
added sounds to constants. used array to store collections of similar sounds so we can use random() to pick from array and have a random sound
removed arrays from constants.py and made arrays in the character classes instead. main character sounds working.
modified some sounds, made them a bit quieter
Merge branch 'master' of https://github.com/aldrinalmacin/Project-1

Conflicts:
	characters.py
	constants.py