track table now loads track numbers and titles

Added TrackTableModel
Increased track number column width from 50px to 100px
Tags are trimmed of excess spaces before first being loaded into model
Edited tags from fields and table cell are trimmed of excess spaces
before being saved to model
Track numbers are auto zero padded for numbers 1-9 when first loading
them into the model
Track titles have each word auto capitalized when first loading them
into the model