Adds standard collect events

[leeren]

Fixes #85 by adding two standard Collect events:

One for invocation of the Collect action:

    event Collected(
        uint256 indexed franchiseid_,
        uint256 indexed ipAssetId_,
        address indexed collector_,
        address collectNft_,
        uint256 collectNftId_,
        bytes collectData_,
        bytes collectNftData_
    );

And one for deploying a new Collect NFT:

    /// @dev Emits when a new collect NFT is deployed.
    event NewCollectNFT(
        uint256 indexed franchiseId_,
        uint256 indexed ipAssetId_,
        address collectNFT_
    );

[kingster-will]

LGTM.