1.15.0.1 patch

• [PCX] (Pixel Composer Expression) now support character in string access using the array syntax.
• [PCX] Allow access to an array member, and character in a string from the last index using a negative number.
• [PCX] New PCX functions
  • length Get the length of the array, string.
  • min, max, clamp
  • fract, sign
  • arcsin, arccos, arctan
  • string, number
  • chr, ord

Bug

• [Inspector] Fix error when connecting array value to some junction.
• [PCX] Fix evaluation bug with unary negative (eg. -2)