What (a) was the total monetary amount of the Municipal Infrastructure Grant that was allocated to the Alfred Nzo District Municipality for the 2019-20 municipal financial year and (b) portion of the amount did the specified district municipality allocate towards the installation of water and sanitation infrastructure in (i) Ward 6 Ndarhala Village in Mount Ayliff, (ii) the Matatiele Local Municipality, (iii) Lutateni and Mvuzi Village in Mount Frere, (iv) Ward 1 and Ward 6 in the Mbizana Local Municipality, (v) Ward 8 and Ward 10 Ndakeni Village in the Ntabankulu Local Municipality, (vi) Ward 13 Mpharane in the Matatiele Local Municipality and (vii) eLubchacweni Village in Ward 17 in Mount Frere?