Generalize the symbol table functionality of ModuleOp into a trait 'OpTrait::SymbolTable'.

Operations must only contain a single region.  Once attached, all operations that contain a 'mlir::SymbolTable::getSymbolAttrName()' StringAttr attribute within the child region will be verified to ensure that the names are uniqued. Operations using this trait also gain access to the 'SymbolTable' class, which can be used to manage the symbol table of the operation. This class also provides constant-time lookup of symbols by name, and will automatically rename symbols on insertion.

PiperOrigin-RevId: 257123573