KMeans Init Sparsity Support

[md-shafiul-alam]

Add sparsity support to KMeans Init and fix a few bugs in daal sparse kmeans++ init, onedal kmeans++ init, and kmeans infer. Specific changes planned or made in this PR.

• [x] Fix distance calculation for sparse data in daal KMeans++
• [x] Allow oneDAL Kmeans++ init to take n_trials same as daal and scikit-learn
• [x] Fix difference between daal Kmeans++ dense and sparse results
• [x] Implement KMeans init sparse support for CPU (just calling daal implementation - cpu)
• [x] Fix oneDAL KMeans sparse infer on GPU
• [x] Update Kmeans infer for sparse data to allow result options same as dense

I have verified that

• [x] Daal kmeans init results are same for sparse and dense data
• [x] oneDAL kmeans init results are same for sparse and dense data
• [ ] oneDAL kmeans init results are same on cpu and gpu
  • Not same for dense data unless we compute initial centroids for dense GPU using cpu implementation

[md-shafiul-alam]

/azp run CI

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/intelci: run

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/intelci: run

[md-shafiul-alam]

Job with relavant changes in sklearnex http://intel-ci.intel.com/ef2ed706-d31d-f1b8-adb9-a4bf010d0e2e

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/intelci: run

[md-shafiul-alam]

/azp run CI

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Azure Pipelines successfully started running 1 pipeline(s).

[md-shafiul-alam]

/azp run CI

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/intelci: run

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/intelci: run

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/intelci: run

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/intelci: run

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/azp run CI

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Azure Pipelines successfully started running 1 pipeline(s).

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/intelci: run

[md-shafiul-alam]

The failures are not related.