Simplify User Interface

[vector-man]

As it currently stands, IPS-Peek is a bit cryptic in areas and lacks documentation. The UI should be improved to make it easier to understand, without having to go to the documentation.

The plan:

1. Hide by default or remove the unnecessary columns in the listview:

PAT (standing for patch by the way) and RLE (run-length encoded patch) in the list should be removed. Instead, going with "Patch Type": "Regular" and "Run-Length Encoded" or something similar.

2. Add labels for some cryptic buttons.

3. Possibly update the icon pack (but I actually like the silk icons) any fans?

[vector-man]

Here's some other icons: https://p.yusukekamiyamane.com/

[vector-man]

Here's a mockup/idea: