Flux API 0.5.6

• Fixed Maven
• UIElement mixin, separated CR UI and Flux UI Elements
• Created BaseTextInput for text input, made BaseButton, BaseSlider inherit from BaseText, fixed TextBoxElement
• Added ÄÖÜäöüßæøåÆØÅ to the font atlas
• Fixed text not centered correctly
• Fixed F3 menu world seed
• Added colored coordinates in F3
• Added scrolling menu, added new language selector
• Added contacts to (quilt|fabric).mod.json
• Added modmenu support
• Used proper toLanguageTag method in LocaleSetting
• Added Icons to BaseButton, fixed smooth scrolling in LanguagePicker, Added new Icons to LanguagePicker
• Fixed sound toggle for flux ui elements
• made previousState not required in Menus