Release v2.0.0-ALPHA1

Changed

• Update API for RollerworksSearch v2.0 (sstok) #37
• Modernize the code-base (sstok) #38
• Add strict_types and type hints (when possible) (sstok) #40
• Redesign the column mapping configuration (sstok) #41
• Simplify column/value conversion system (sstok) #43
• Add more type hints and return types (sstok) #44
• Refactor WhereBuilder (caching) and mapping (sstok) #45
• Rename WhereBuilder to (Sql)ConditionGenerator (sstok) #46

Removed

• Remove requiresBaseConversion from ValueConversion (sstok) #39