Updated AegisNames in the pre-re item DB

- AegisName values taken from Ind's Ultimate Item DB Update (1caae98)
- Fixed bugreport:7600 (thanks to bgamez23)
  http://hercules.ws/board/tracker/issue-7600-error-itemdb-read-duplicate-aegisname/
- Corrected and enabled some previously unavailable/unknown IDs in
  item_packages.conf (both pre-re and re) and item_group.conf (pre-re)

Signed-off-by: Haru <haru@dotalux.com>