added multiple keywords to COREG, COREG_LOCAL and Geo_Quality_Grid

components.CoReg.COREG:
- implemented new keyword 'target_xyGrid'
- added out format assertion

components.CoReg_local.COREG_LOCAL:
- implemented new keywords 'out_gsd', 'align_grids', 'match_gsd', 'target_xyGrid', 'resamp_alg_deshift', 'resamp_alg_calc'
- modified output format assertion

components.DeShifter.DESHIFTER:
- edited docstring

components.Geom_Quality_Grid.Geom_Quality_Grid:
- implemented new keyword 'resamp_alg_calc'
- CoRegPoints_table: edited print output
- to_GCPList(): edited print output