v0.3.2

Corrections on variables and dtypes in final OMOP tables.

Bugfix:

• Removed visit_start_date from measurement table, and string values in care_site table's place_of_service_concept_id
• Save all OMOP tables to parquet + corrected wrong dtypes on some tables.
• Rounding times to the second. This avoids an error due to high precision in time when writing some records to parquet OMOP tables.

Minor changes:

• Refactored timeseriespreprocessing to timeseriesprocessor
• Option to skip reset_dir() when starting 2_{dataset}.py