Export token transfers on address: include transfers on contract itself

[vbaranov]

Resolves #4972

Motivation

Exporting of tokens transfers on address accounts only those which sent from or to account. Thus, if someone requests transfers of token address itself, an empty list of token transfers will be returned.

Changelog

Complement to_address_hash and from_address_hash clauses with token_contract_address_hash clause for the list of token transfers to export.

Checklist for your Pull Request (PR)

• I added an entry to CHANGELOG.md with this PR
• If I added new functionality, I added tests covering it.
• If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.
• I checked whether I should update the docs and did so by submitting a PR to https://github.com/blockscout/docs
• If I added/changed/removed ENV var, I submitted a PR to https://github.com/blockscout/docs to update the list of env vars at https://github.com/blockscout/docs/blob/master/for-developers/information-and-settings/env-variables.md and I updated the version to master in the Version column. Changes will be reflected in this table: https://docs.blockscout.com/for-developers/information-and-settings/env-variables.
• If I add new indices into DB, I checked, that they are not redundant with PGHero or other tools