Add MixUp and BatchMixUp

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.11% :tada:

Comparison is base (686d13b) 98.61% compared to head (6b37922) 98.72%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #5 +/- ## ========================================== + Coverage 98.61% 98.72% +0.11% ========================================== Files 10 10 Lines 864 944 +80 ========================================== + Hits 852 932 +80 Misses 12 12 ``` | [Files Changed](https://app.codecov.io/gh/juliendenize/torchaug/pull/5?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Julien+Denize) | Coverage Δ | | |---|---|---| | [torchaug/batch\_transforms/functional.py](https://app.codecov.io/gh/juliendenize/torchaug/pull/5?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Julien+Denize#diff-dG9yY2hhdWcvYmF0Y2hfdHJhbnNmb3Jtcy9mdW5jdGlvbmFsLnB5) | `100.00% <100.00%> (ø)` | | | [torchaug/batch\_transforms/transforms.py](https://app.codecov.io/gh/juliendenize/torchaug/pull/5?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Julien+Denize#diff-dG9yY2hhdWcvYmF0Y2hfdHJhbnNmb3Jtcy90cmFuc2Zvcm1zLnB5) | `99.00% <100.00%> (+0.06%)` | :arrow_up: | | [torchaug/transforms/functional.py](https://app.codecov.io/gh/juliendenize/torchaug/pull/5?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Julien+Denize#diff-dG9yY2hhdWcvdHJhbnNmb3Jtcy9mdW5jdGlvbmFsLnB5) | `100.00% <100.00%> (ø)` | | | [torchaug/transforms/transforms.py](https://app.codecov.io/gh/juliendenize/torchaug/pull/5?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Julien+Denize#diff-dG9yY2hhdWcvdHJhbnNmb3Jtcy90cmFuc2Zvcm1zLnB5) | `99.53% <100.00%> (+0.04%)` | :arrow_up: |

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