message: Make pixel history test more forgiving with comparison epsilon
diff: @@ -297,7 +297,7 @@ class VK_Pixel_History(rdtest.TestCase):
  for c in range(len(events[i])):
  expected = events[i][c][1]
  actual = events[i][c][0](modifs[i])
  - if not rdtest.value_compare(actual, expected):
  + if not rdtest.value_compare(actual, expected, eps=1.0/256.0):
  raise rdtest.TestFailureException(
  "eventId {}, primitiveID {}: testing {} expected {}, got {}".format(modifs[i].eventId, modifs[i].primitiveID,
  events[i][c][0].__name__,
  