Added ability to sort on PB columns as well as view in PBs Browse mode

# Added ability to sort based on PB columns
ex: <code>pirate-get -c 208 -s 3</code>

The above example searches Category 208 (Video/HD - TV shows) sorted by Ascending upload date.

## Sort options: 
* Title Descending: 1
* Title Ascending: 2
* Date Descending: 3
* Date Ascending: 4
* Size Descending: 5
* Size Ascending: 6
* Seeders Descending: 7
* Seeders Ascending: 8
* Leechers Descending: 9
* Leechers Ascending: 10
* Category Descending: 13
* CategoryAscending: 14
* Default: 99


# Added ability to view in 'browse' mode
ex: <code>pirate-get -b -c 208 -s 7</code>

The above example browses Category 303 (Applications/Mac) sorted by Descending seeder count. **Note**: If no category is provided the script will default for Category 100 (Audio).