SYNTHESIS, CHARACTERIZATION AND BIOLOGICAL EVALUATION OF 2-(4,6-DIMETHYLPYRIMIDIN-2-YL)-1-(1-(4- HYDROXY-6-METHYL- PYRAN-2-ONE-3- YL)ETHYLIDENE)HYDRAZINE SCHIFF'S BASE TRANSITION METAL COMPLEXES: ANTIBACTERIAL AND DNA PHOTOCLEAVAGE STUDY