Change order in DisputeRequest event

[unknownunknown1]

Changed order of the arguments and also reintroduced evidenceGroupID (renamed to localDisputeID) which was earlier removed from RequestSubmitted event

[unknownunknown1]

Added a view contract. The main differences from the old one:

• Removed any mention of appeals and rounds
• Replaced metaevidenceId with dispute template
• Some seemingly useless properties (e.g. currentRuling) removed.

Note that the old contract wasn't reviewed and apparently had some bugs. For instance, the way it fetches arbitration parameters would revert since arbitration and extraData should be fetched through an array where they're stored