McLib 2.0

[mchorse]

New stuff

• [x] Add Icon API for easier icon rendering
• [x] Add configuration API to allow easier management of global config options
  • [x] Add references to original category and config instances
  • [x] Add some appearance related McLib configuration
    • [x] Primary color (allows to change color of button backgrounds, etc.)
    • [x] Toggle for element borders (allow to disable/enable borders for buttons and other elements)
    • [x] Background color and image options
    • [x] Model renderer's grid option instead of grass block
    • [x] Toggle check box rendering instead of toggles
  • [x] Make config options show up in the order they were added
• [x] Add a GuiUtils.openWebLink(String)
• [x] Add list sorting feature (suggested by Frtc and Chunk7)
• [x] Add a method to return keybinds within GUI (and add help rendering menu)
• [x] Add a possibility to register keybinds within GUI elements
• [x] Add context menu (on right clicking) API
• [x] Add active element switching to the next by pressing tab
  • [x] Doesn't work sometimes with nested elements, needs investigation
• [x] Add color picker element

Changes

• [x] Rewrite GUI element hierarchy (introduce parent-child)
• [x] Rewrite GUI element input (introduce GUI context)
• [x] Rewrite key handling (from plain void to cancel-able boolean)
• [x] Rewrite list elements to support multi select
• [x] Rewrite old wrapper elements:
  • [x] Rewrite GuiTrackpadElement
  • [x] Rewrite GuiButtonElement into their own GuiClickElement<T> subclasses
    • [x] GuiButton -> GuiButtonElement
    • [x] GuiTexturedButton -> GuiIconElement
    • [x] GuiCheckBox -> GuiToggleElement
    • [x] GuiCirculate -> GuiCirculateElement
  • [x] Rewrite GuiSlot and GuiInventory
    • [x] Slightly adjust the code for easier use (with no copy paste)
  • [x] Make sure that all of these wrappers support locked input (enabled = false) indicators
• [x] Move MatrixUtils from Blockbuster
• [x] Move pickable GuiModelRenderer from Blockbuster
• [x] Move mouse cursor rendering code from Aperture

Fixes

• [x] Fix Interpolations.envelope to not go above and beyond in negative directions...
• [x] Fix language strings updating with resource packs problem