Support Video MAE

[jiarenyf]

Could you please support Video MAE: https://github.com/MCG-NJU/VideoMAE

Thank you ~

[fangyixiao18]

Thanks for your reporting. It's in our future plan

[austinmw]

+1, also excited to see this! @fangyixiao18 Curious if part of the plan is to implement spacetime masking as in Masked Autoencoders As Spatiotemporal Learners?