[misc] separated ms-sys dependency from application

* set ms-sys to be built as a library
* also removed unused code from badblocks.c

src/ms-sys/inc/partition_info.h

@@ -0,0 +1,16 @@
+#ifndef PARTITION_INFO_H
+#define PARTITION_INFO_H
+
+/* Writes the number of heads to a partition
+   returns TRUE on success, otherwise FALSE */
+int write_partition_number_of_heads(FILE *fp, int iHeads);
+
+/* Writes the start sector number to a partition (also known as
+   "number of hidden sectors"), returns TRUE on success, otherwise FALSE */
+int write_partition_start_sector_number(FILE *fp, int iStartSector);
+
+/* Writes a physical disk drive id of 0x80 (for C:) to a partition */
+int write_partition_physical_disk_drive_id_fat16(FILE *fp);
+int write_partition_physical_disk_drive_id_fat32(FILE *fp);
+
+#endif