Add type to supports data

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## The Issue

Currently, when you list claim information (claim_list_mine/claim_show/resolve/claim_list) that shows supports, you can't tell if it's a classical support or a tip. We should add a type attribute to each support. If someone sends a tip to themselves, it's treated the same way as a classical support, so not sure which way it needs to be captured.

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### Expected behaviour
Support should show if it's a tip or not

### Actual behaviour
Can't tell if support is a tip or classic support

Start by tracing the claim_list_mine, claim_show, resolve, and claim_list implementations to find where support data is assembled. Determine how classical supports and tips, including self-sent tips, are represented, then verify that every named response exposes whether each support is a tip.

Written by the indexing model from the issue text.