Added custom save object and supporting widgets/functions/etc.

[samamstar]

• [+] Added font "Noto Sans"

  • This font family supports all languages that DRG has translations for, and is used as a fallback for the other DRGLib fonts

• [+] Added custom save object system

  • Easy to generate from JSON

• [+] Added system to automatically generate settings widgets for a given save object

• [+] Added LIB_WT_FloatSlider

  • Supports Linear, Quadratic, and Radical scaling
  • Supports arbitrary minimum and maximum values

• [N] [+] LIB_M_BasicMacros

  • Added macro "StoreTempVar"
  • Added macro "StoreTempArray"

• [N] LIB_WT_ExpandableArea

  • Fixed bug where area wouldn't close all the way when animated

• [N] LIB_W_LogSettingsPage

  • Switched to new settings widgets and save object.

• [N] LIB_WT_Spinbox

  • Added logic for a spinbox that has no upper or lower bound