Finished V3

- Small variable renaming (line 25 -> 40)
- Added array creation before loop (54 -> 67)
- While loop loops through all samples, plus a few extra (70)
- Percentage is a little cleaner, and doesn’t have to do a bunch of
math (74 -> 77)
- fixed creation of vertical red line (82)
- implemented new creation of section sample averages. The program now
has a multi-dimensional array of values for the specific sections.
Before drawing the picture, the loop removes the first array and adds
the newly averaged section, as the sound is moving right to left (84 ->
97)
- creating picture, with try/excepts for when I’m getting to the end of
my multi-dimensional array (101 -> 111)
- remove lots of old code