Release v0.1.1

• added classification domain
• added from-jsonlines-cl reader and to-jsonlines-cl writer for classification data in JSON lines format
• added filter pretrain-sentences-to-classification to turn pretrain data into classification data (with a predefined label)
• added filter classification-label-map that can generate a label string/int map
• the to-llama2-format filter now has the --skip_tokens options to leave out the [INST] [/INST] tokens
• added from-parquet-cl reader and to-parquet-cl writer for classification data in Parquet database format
• added from-csv-cl/from-tsv-cl readers and to-csv-cl/to-tsv-cl writers for classification data in CSV/TSV file format