Adjusting all grid selection models for buffered rendering

the combination models were still missing, now all 6 different selection models inside the demo work: https://neomjs.com/examples/grid/bigData/index.html

https://github.com/user-attachments/assets/e0bd9476-97ce-44d1-8572-9eeaadce70d1

https://github.com/user-attachments/assets/7993c960-f0ff-481e-9914-2dcee47ce93d

https://github.com/user-attachments/assets/1a823cea-477f-45a8-a1f3-99b3aa718e83

All changes in 1 commit: https://github.com/neomjs/neo/commit/2fc47ba49ec6a5dff42dbb823d66407abb2c2e6a