Treat multiple underscores as single ones in underscore table names when generating Entity names.
Treat multiple underscores as single ones in underscore table names when generating Entity names.

Before:
- single_underscore => SingleUnderscore
- multiple__underscores => Multiple_Underscores
- multiple___underscores => Multiple__Underscores

After:
- single_underscore => SingleUnderscore
- multiple__underscores => MultipleUnderscores
- multiple___underscores => MultipleUnderscores

molaux/mysql-workbench-schema-exporter,molaux/mysql-workbench-schema-exporter,johmue/mysql-workbench-schema-exporter,mysql-workbench-schema-exporter/mysql-workbench-schema-exporter,johmue/mysql-workbench-schema-exporter,mysql-workbench-schema-exporter/mysql-workbench-schema-exporter