Log Message:
py-apsw: updated to 3.31.1

3.31.1-r1
Various updates due to year change
Fix deprecated universal newline use in shell
Shell now uses pragma function_list to get list of functions for tab completion
Added constants:
SQLITE_DBCONFIG_TRUSTED_SCHEMA, SQLITE_DBCONFIG_LEGACY_FILE_FORMAT,
SQLITE_CONSTRAINT_PINNED, SQLITE_OK_SYMLINK, SQLITE_CANTOPEN_SYMLINK,
SQLITE_FCNTL_CKPT_DONE, SQLITE_OPEN_NOFOLLOW, SQLITE_VTAB_DIRECTONLY