Enh bert

• Adds cartodata/pipeline/projecttionnd/BertProjection class to be used with Pipeline API
• Adds notebook pipeline_lisn_bert_kmeans.py that uses BertProjection
• Removes cartodata/scoring.py file
• Updates notebook compare_projections_vispubdata.py to use cartodata/model_selection/scoring
• Removes compare_projections_vispubdata.ipynb which is a duplicate of compare_projections_vispubdata.py
• Runs tests with transformers option in all Python versions
• Fixes failing test due to insufficient CI machine resources