Add Mocov3

[vturrisi]

No description provided.

[codecov]

Codecov Report

Merging #268 (5b79006) into main (fbbf663) will increase coverage by 0.02%.
The diff coverage is 93.75%.

Flag	Coverage Δ		*Carryforward flag
cpu	80.90% <93.75%> (+0.53%)	⬆️
dali	40.66% <80.00%> (ø)		Carriedforward from 6f83cef

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
solo/methods/byol.py	77.64% <ø> (-8.07%)	⬇️
solo/utils/backbones.py	67.05% <0.00%> (ø)
solo/losses/mocov3.py	80.95% <80.95%> (ø)
solo/losses/__init__.py	100.00% <100.00%> (ø)
solo/losses/mocov2plus.py	100.00% <100.00%> (ø)
solo/methods/__init__.py	92.85% <100.00%> (+0.85%)	⬆️
solo/methods/base.py	78.42% <100.00%> (-0.64%)	⬇️
solo/methods/mocov2plus.py	100.00% <100.00%> (ø)
solo/methods/mocov3.py	100.00% <100.00%> (ø)
solo/losses/moco.py	33.33% <0.00%> (-66.67%)	⬇️
... and 4 more

[DonkeyShot21]

Offline linear eval and cifar experiments are missing. MoCoV3 + link is missing under supported methods.

[DonkeyShot21]

isnt it better to unify the losses and just pass the labels (diagonal vs first column)?