Fresh GUI

changelog: (1.6)

• added custom boss bar with removable underline, put "{[hide]}" in the text to the line be hidden
• add custom hotbar (with custom xp bar, locator, horse jump meter)
• custom gamemode switcher GUI
• fixed no/backwards scrolling on Mac inside Minecraft
• custom tooltip
• custom potion effects added to the creative inventory
• added custom merchant GUI
• fixed book view
• whole Minecraft GUI remake
• custom default button
• custom default slider
• custom esc menu with player list, friends list, blocked players
• and a lot more!