* apiCall: add option to not send the auth header
## Why
Want an option to make un-authenticated `resolve` calls where appropriate, to improve caching.
## How
All `apiCall`s are authenticated by default, but when clients add NO_AUTH to the params, `apiCall` will exclude the X_LBRY_AUTH_TOKEN. It will also strip NO_AUTH from the param object before sending it out.
* Add hook for 'resolve' and 'claim_search' to check and skip auth...
... if the params does not contain anything that requires the wallet.
* doResolveUri, doClaimSearch: let clients decide when to include_my_output
- No more hardcoding 'include_purchase_receipt' and 'include_is_my_output'
- doResolveUri: include these params when opening a file page. This was the only place that was doing that prior to this PR.
* is_my_output: use the signing_channel as alternative
## Notes
`is_my_output` is more expensive to resolve, so it is not being requested all the time.
## Change
Looking at the signing channel as the additional fallback, on top of `myClaimIds`.
## Aside
I think using `myClaimIds` here is redundant, as it is usually populated from `is_my_ouput`. But leaving as is for now...
