THE GRAND RAPIDS PRESS  At 5 years old, Dakota Tomac wants to do things himself. He doesn’t want his cerebral palsy to require others to carry his book or figure out how he will get his lunch on the table.   His independent spirit got a boost with a tool created by Grand Valley State University students, thanks to an idea from a physical therapist at the Kent Intermediate School District.   The students made a tray that fits onto Dakota’s walker so he could move around at school and carry his iPad, which helps him communicate.   “It’s so