Add additional intrinsic class definitions

[admvx]

The following classes are documented in the official ActionScript 2.0 Language Reference but missing in this extension's intrinsic classes:

BevelFilter
BitmapData
BitmapFilter
BlurFilter
ColorMatrixFilter
ColorTransform
ConvolutionFilter
CustomActions
DisplacementMapFilter
DropShadowFilter
Error
ExternalInterface
FileReference
FileReferenceList
GlowFilter
GradientBevelFilter
GradientGlowFilter
IME
Locale
Matrix
Point
Rectangle
TextRenderer
Transform
XMLUI