What is the (a) current total cost of school vandalism that occurred in the 2020-21 financial year, (b) breakdown of the total cost in respect of each province, (c) total number of vandalised schools that are (i) not operational, (ii) semi-operational and (iii) fully operational, (d) breakdown of learner capacity of the schools that are not operational (i) in each province and (ii) nationally and (e) total number of vandalised schools that had plans underway to repair damages in the specified financial year?