* harbour/src/rdd/dbf1.c
+ allow to open DBF files with 0x07 and 0x87 signature created by
CA-VO DBFNTX when ANSI encoding is enabled.
Thanks to Vitomir Cvitanovic for CA-VO tests.
Warning! After any modifications in such files Harbour DBF* RDDs
will correct above signatures to standard DBASE ones (0x03 and 0x83).