v2.0.0

This update includes the following:

• Update of the synthea package to support synthea 3.1.0 and 3.20
• Location and caresite ETL support
• Update to the package to split intermediate steps and event table loading @katy-sadowski @NACHC-CAD
• Updates to export to SQLite to support OMOP v5.3 and v5.4 @mccullen
• Update to github.io documentation
• Improved version support for CreateCDMIndexAndConstraintScripts, backupCDM, createPrunedTables, getEventConceptId, pruneCDM, restoreCDMTables scripts
• Resolution of formatting and lintr issues
• Removal of redundant joins from allvisittable query
• Addition of the synthea version to the source description for debugging