Add support for printing SDT elf notes.

Add support for printing SDT elf notes.

libebl/
    * libebl.h (ebl_object_note_type_name): Add const char *name arg.
    * eblhooks.h (object_note_type_name): Likewise.
    * eblopenbackend.c (default_object_note_type_name): Likewise.
    * eblobjnotetypename.c (ebl_object_note_type_name): Likewise.
    And print version if name is "stapsdt".
    * eblobjnote.c (ebl_object_note): Add output for "stapsdt" notes.
src/
    * readelf.c (handle_notes_data): Call ebl_object_note_type_name
    with note name.