Added celldancer, deepvelo, and latentvelo to dyn.tl.extvelo (#721)

[Starlitnightly]

This pull request introduces the core infrastructure for integrating DeepVelo, Celldancer, and latentvelo

Example

#celldancer 
celldancer_df,adata=dyn.tl.extvelo(
    adata,
    method='celldancer',
    basis= "X_umap",
    Ms_key= "M_s",
    Mu_key= "M_u",
    permutation_ratio=0.5, #n_jobs=1,
    model_dir_path='model',
    n_jobs=1,        
    device='cuda',
)

#deepvelo
adata=dyn.tl.extvelo(
    adata,
    method='deepvelo',
    celltype_key='clusters',
    basis= "X_umap",
    Ms_key= "M_s",
    Mu_key= "M_u",
)

#latentvelo
latent_adata,adata=dyn.tl.extvelo(
    adata,
    method='latentvelo',
    celltype_key='clusters',
    basis= "X_umap",
    Ms_key= "M_s",
    Mu_key= "M_u",
    batch_size = 100, learning_rate=1e-2,
    epochs=50, param_name_key='temp/latentvelo_params',
    grad_clip=100,
    latentvelo_VAE_kwargs={
        'latent_dim':50,
        'zr_dim':2,
        'h_dim':2,
    }
)

[codecov]

Codecov Report

❌ Patch coverage is 0.18013% with 3325 lines in your changes missing coverage. Please review.
✅ Project coverage is 28.11%. Comparing base (27eb07f) to head (68c50fd).
⚠️ Report is 10 commits behind head on master.

Files with missing lines	Patch %	Lines
dynamo/external/deepvelo/utils/temporal.py	0.00%	501 Missing ⚠️
dynamo/external/deepvelo/plot/scatter.py	0.00%	421 Missing ⚠️
dynamo/external/deepvelo/tool/velocity.py	0.00%	223 Missing ⚠️
dynamo/external/deepvelo/model/model.py	0.00%	183 Missing ⚠️
dynamo/external/deepvelo/utils/confidence.py	0.00%	181 Missing ⚠️
dynamo/external/deepvelo/utils/optimization.py	0.00%	171 Missing ⚠️
dynamo/external/deepvelo/model/loss.py	0.00%	169 Missing ⚠️
dynamo/external/deepvelo/trainer/trainer.py	0.00%	156 Missing ⚠️
dynamo/external/deepvelo/plot/plot.py	0.00%	144 Missing ⚠️
...namo/external/deepvelo/data_loader/data_loaders.py	0.00%	123 Missing ⚠️
... and 29 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #731      +/-   ##
==========================================
- Coverage   30.26%   28.11%   -2.15%     
==========================================
  Files         258      295      +37     
  Lines       43407    46721    +3314     
==========================================
  Hits        13137    13137              
- Misses      30270    33584    +3314     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.