Program 2 - Comparison (v.0.2)

Changelog:
-Deleted createArray() and replaced with addToArray() to dynamically
handle number insertion into array (uses code worked on in lab today)
-Added displayArray() function to print all the values in the array
with commented line in main() to use if necessary for debugging
-addToArray() functional call in main() uses a random value up to 10000
to be sorted into the array
-Improved timer variables and line statements in the main() for clarity
-do while loop to main() added to make repeated comparisons easier
rather than having program end after single comparison

Status: The code is tested and working as intended thus far. The array
portion of this program appears to be complete, unless program
guidelines change before deadline.

Next: Implement the insertion sort-based linked list creation. A
portion of the linked list code in main() is already written based on
the same template used for the array, but commented out for future use.