Protobuf Update

Updated dependencies and the IGDB Protocol buffer template

The template adds structure for new Age Ratings:

• CERO
• USK
• GRAC
• CLASS_IND
• ACB

New External Games:

• EXTERNALGAME_AMAZON_ASIN
• EXTERNALGAME_AMAZON_LUNA
• EXTERNALGAME_AMAZON_ADG
• EXTERNALGAME_EPIC_GAME_STORE
• EXTERNALGAME_OCULUS

What's Changed

• Updated protofile by @husnjak in #15

Full Changelog: 1.0.4...1.0.5