Remove assumption of style from

• ✅ Style Implementation
• SAX Parser
• DOM Parser
• XDO Parser
• XMS-XSD Bindings

Copy existing Filter Implementations, and remove AbstractFilter superclass

Package up as a FilterFactoryImpl

Use a hint to try out existing test cases with FilterFactoryImpl

When encountering geotools FilterVisitor; rewrite as a geoapi FilterVisitor (use DuplicatingFilterVisitor as an example)

• For PrePostFilterVisitorSQLGeneratorMagicSuperClassThing a new super class is already available FilterToSQL

When encoutering a geotools Filter or Expression follow the update instructions to search and replace the OpenGIS counterpart

Move org.geotools.filter interfaces to "legacy" module