update local scripts for GDMS and MBDT changes
- update scripts for GDMS and MBDT must be added in
local/common-update/
local/common-update/yyyymmdd
updated central scripts location for GDMS and MBDT scripts
moved central/common-update/yyyymmdd/ to central/common-update/
we are dropping the central crop database during installation
hence, we need to add updated scripts only
(no need to maintain alter scripts since we are dropping the database)