In light of the additional funding that his department allocated to the Independent Development Trust (IDT) in November 2017, what (a) amount of additional funding was allocated to the IDT (i) in each of the past three financial years and (ii) since 1 April 2017, (b) was the total budget allocated to the IDT in each of the specified financial years and (c) were the outcomes of the additional funding that was achieved in each case?