Convert db-tests.c's initial state generation to a similar C struct as used in op-depth-tests.c, to allow handling future database format updates without rewriting all sql manually.
* subversion/libsvn_wc/wc-checks.sql (STMT_STATIC_VERIFY): Extend further. This time to fix some NULL cases caused by joining.
* subversion/tests/libsvn_wc/db-test.c (TESTING_DATA): Remove NODES and ACTUAL init. (NOT_MOVED, NO_COPY_FROM): New defines. (nodes_init_data, actual_init_data): New variables, manually extracted from TESTING_DATA. (create_open): Update caller.