new ClearDoubleTPA algorithm and exported some functions to lape.

Changed the ClearDoubleTPA algorithm... it's now FAR faster credits to Janilabo + Bart.

speed before
 6703ms. (length 45000)
speed now:
 0ms. (length 45000)

Un-commented LoadSystemFont export because TFont has been exported now

Exported findColorsBitmap() to Lape.