fdisk: (sun) use fdisk_ prefix for label specific public functions

Signed-off-by: Karel Zak <kzak@redhat.com>
libfdisk: add fdisk_partition_toggle_flag()

Signed-off-by: Karel Zak <kzak@redhat.com>
fdisk: (sun) cleanup header file

Signed-off-by: Karel Zak <kzak@redhat.com>
libfdisk: add disk_partition_is_used()

Signed-off-by: Karel Zak <kzak@redhat.com>
libfdisk: improve fdisk_ask_partnum()

 .. to don't ask is there is only one choice.

Signed-off-by: Karel Zak <kzak@redhat.com>
fdisk: (dos) use new dialog to ask for prim. partitions

Signed-off-by: Karel Zak <kzak@redhat.com>
libblkid: ignore nested BSD partitions if same like parent

Signed-off-by: Karel Zak <kzak@redhat.com>
libfdisk: add support for nested contexts

Signed-off-by: Karel Zak <kzak@redhat.com>
fdisk: (bds) use nested partition table

Signed-off-by: Karel Zak <kzak@redhat.com>