Incredibly basic AviSynth processing. Do not use.

Things to note:
- It works.
- CropForm is being ignored by the compiler for now.
- A lot of code is removed for posterity, but may appear later in other
  functions. Sorry.
- There's three new binary blobs. Be afraid.

Things to do:
- Run ffmsindex without blocking the UI.
- All the buttons need wizards for easy use.
- Add a preview window.
- Re-implement automatic bitrate detection.
- Syntax highlighting for the textBoxProcessingScript would be nice.
- Clean up everything.
- Make sure we're not breaking any laws by including those binaries.
ffmsindex now runs in the background.

Also, the preset AviSynth script now actually uses the generated index
file.
Minor UI changes to make stuff more retarded.

- Advanced settings moved to Encoding tab.
- Some groupBoxes have been merged.
- 2-pass mode is now implied by enabling "HQ mode".

- 2-pass encoding now properly uses avsFileName rather than input.
Added an easy view for processing + UI updates.

The buttons are still stubs. They don't do anything smart yet.
I need to make a reusable preview control for use in CropForm mk2 et.c.

Also, the UI has been given an autism pass. Means nothing to users.
But tabindex is fixed again! And the arguments update more often.

The filters need icons in the easy view.

Support for multiple trims would be good.

The subtitle tab is ignored for now, because it will likely get moved
  to processing. AviSynth can handle subtitles for us.
Added previewFrame. Fixes #1, needs improvement.

I don't think ffmpeg is the right choice for this. It's hard to say.
I might hotwire AviSynth into this process as well.
Should be faster with ffindex being there.

This at least lays the groundwork for more issues.
Also, tabPage1 is just a temporary thing to show off the preview.
Need to figure out where to actually put it in the real design.

CropForm is removed for now.
Renamed previewFrame to PreviewFrame.
Implemented FFMS#. Fix for #13.
Add a FFMS# binary to the repo
Added new TrimForm
TrimForm improvements

Gave all the controls pretty names.
Added frame counters for all the different things.
You can skip to a specific frame using textBoxSelectedFrame.
Generate a new preview on resize
Filters can now be edited in simple view
Added minimum size for TrimForm
Added CropForm
Get rid of the warning for the Designer
Filter forms now generate IFilters

This is to alleviate issues where filters have to be written in a specific
order for Avisynth, and also makes things a bit prettier.
It also makes it easier for filter forms to check properties of other
filters, which will be needed for the ResizeForm.
Processing tab is reset when loading a new file
CropForm's preview now starts at the Trim start
Added ResizeForm
Automatic bitrate detection is back. Closes #3.