implement the last 2 mask:mask blends simd

[guzba]

before:

rect Mask SubtractMaskBlend ........ 0.067 ms      0.078 ms    ±0.017  x1000
rect Mask ExcludeMaskBlend ......... 0.075 ms      0.076 ms    ±0.001  x1000

after:

rect Mask SubtractMaskBlend ........ 0.013 ms      0.015 ms    ±0.003  x1000
rect Mask ExcludeMaskBlend ......... 0.014 ms      0.015 ms    ±0.002  x1000