Pokemon Metal Pack [Indev v0.53] v0.4

Took me a while to come up with a new update. After playing with the metalpack for some time, it started to bother me that battles started off with the 8-bit sounds of an intro and after that the metal theme played. Some themes even had a double intro. About time we fixed it!

Fixes:
- no more double intro on the johto wild encounter battle theme
- no more double intro on the kanto wild encounter battle theme
- 8-bit intro's removed
- Safarizone theme now actually loads into game

Added:
- Metal intro for wild encounters
- Metal intro for trainer battles

Fixes:
Enabled pack for Indev 0.53

Added:
2 Route musics

Fixed:
Safari gate theme
Lugia theme

Fixes:
-

Added:
Battle victory theme
safari gate theme
ancient ruins theme