Added an extra option to fast forward battle intro

[mdmurphy2]

• Added an option under Extra Options that will automatically fast forward the intro sliding in / throwing pokemon scene
• This will Set speed to 6400 (max) and then reset back to what your client speed was set to
• Works on both wild interactions and trainer battles

[mdmurphy2]

Testimony xD

[UTDZac]

It looks like this has some conflicts. I'd recommend trying to reset your branch to our current dev branch, I'm not sure why this PR is including old stuff that got changed up.

This feature is one I want to explore more before committing to adding it. This is mostly a case of wanting to understand how it can be a helpful core addition to the Tracker (as opposed to a custom extension). I struggle to see a need or want for something like this. Who is this for? Typically people play the game without speedup at all, or with speedup permanently on, especially for early game.

If this is something we want to add, we'd need to resolve the below. Feel free to hold off on resolving these until we decide if this is something we want to add or not. I merely wrote them all down as I was testing and reviewing this feature.

A few notes about this feature:

• It doesn't play well if you play with sound on, which is common for those who don't use speed-up normally.
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• It also doesn't play well if the enemy Pokemon has an ability that triggers, such as a weather ability or intimidate. The speedup change lingers longer enough that it speeds right base the ability text. It's not easy to read or see what ability got used.
• It's a bit weird to me that the temp speedup hands at the "Wild PIKACHU appeared!" battle start dialog. I would expect the speedup to go away after the pokemon finishes sliding into view. I believe at one point we had the total number of frames it took for this to occur, so it might be as simple as just keeping speedup on for that many emulation frames (150 for wild pokemon, 80 for trainers... or those two might be swapped, its been a while)
• In addition, I also somewhat expected the speedup to start sooner, as the screen transitions to black. Basically, at the exact instant an encountered is triggered. The time it takes for the screen to change from overworld to in-battle, that black screen transition, is about as long as this battle intro that we're skipping.
• This will crash anyone who uses mGBA, since that emulator doesn't have Bizhawk's client functions. Ideally this feature can work regardless of what emulator you are using, otherwise, it needs proper checks to hide the option and not execute its code if on mGBA.
• In Battle.lua, the emulationSpeed = 100 and isFastForwarding = false need to be set in the initialize() function of that file. The emulators have this weird thing where it remembers any current value defined in that global on reset/quickload. So if someone quickloads while the above variables have changed, their new game uses the changed values and not your expected defaults.
• Can you rename the option to "Fast forward battle intro" with lowercase letters to match other options
• Can you move the English language file option entry up a few lines so its grouped with other similar option labels
• When adding new text that appears on screen, you'll also have to add entries to the other language files available. Check the same area of other language files to see the template for how that looks.

[UTDZac]

Closing, as this is more suited as a Tracker Extension than a core option.