(Beta) Functional port to 1.1.3

Ported all old features:

• EN and DE translations without scrolling and with more coherency
• 4NiMh battery display option
• Multiplicative mixing (e.g. for "Kid mode")
• Quick toggle Progmix 1 and 2 without menu dive

New feature in this release:

• Per model "Quick toggle" key selection (or select none)

Inside Progmix menu, choose a key that will turn that Progmix on and off, inside "L(ead)" channel option.
Select NULL to not have any keys

• Toggle Progmix with single key

As above, choose "TGGL" as one key and some actual key as other.
Now pressing that key will toggle Progmix 1 and 2 exclusively
You can choose if they go 1 -> 2 -> No -> 1 ... or 1 -> 2 -> 1 ... depending if 1st or 2nd is chosen as toggle
Release will have this more clear
On release I will make a video

Submit your feedback and ideas into #16

EDIT: File removed due to incompatibility with 1.1.5. Contact me if you need it for any historical or research reasons.