Modified TODO in some offset cases.
Deleted the same test cases bug697_* in /bugs/modalg
Deleted test cases which is based on v2d commands
Added test cases to folder bugs
Adding procedures checkcolor and checkpoint.
Modified test cases which are used QAGetPixelColor or QAAISGetPixelColor2d
Allow using command QAAISGetPixelColor2d on WNT
Rename test case tests/bugs/vis/bug19619 to pro19619
Added test cases to modalg and moddata