Class ov::pass::ConvertNmsGatherPathToUnsigned

class ConvertNmsGatherPathToUnsigned : public ov::pass::GraphRewrite

Converts Gather indices to unsigned if indices are from NMS selected indices output. NMS returns -1 for not selected boxes, old version of Gather fill corresponding output for such indices with zero. But new Gather-8 has support of negative indices indicating counting from the end. In order to keep such behaviour (until dynamism is not supported) instead of -1 new Gather-8 will accept UINT32_MAX which is always outside of the bounds and corresponding output for such indices in gather always will be filled with zeros.