[PATCH 0/1] MR3774: gdiplus/tests: extend DrawImage tests

[Bartosz Kosiorek (＠gang65)]

With this commit we proof that PixelOffsetMode None and Fast
is implemented correctly.

By changing colour of second pixel of bitmap Source,
the issues with pixel offset appear
for PixelOffsetMode Half and HighQuality.

Extending tests is starting point for further
improvements of implementation pixel offset modes
to match implementation from native gdiplus.