Modify Reader:
1. Parsing "FlipX", "FlipY", "AnchorPoint".
2. Parsing "VisibleForFrame" instead of "Visible"
Deleting original code that parsing "Visible"
Delete annotate code of all Reader files
Delete the blank block
Merge pull request #8762 from Dhilan007/v3-33rc

disable warn on zero-sized structure[android].
Merge pull request #8738 from pipu/v3_Modify_Reader

Modify Reader: