* Enable verifying packages signatures
* Remove post hook and use LOG_DEBUG instead of LOG_INFO
* Move getting "signatures" from `pkg_signatures` to `verify_package`
* Add tests for solvable and PackageInfo
Remove signatures from field in PackageInfo
* Add const and reorganize repo_checker
Add text in description for verify-package flag
* Add bindings and make `trusted_channels` configurable
* Define MAX_CONDA_TIMESTAMP
* Code review
* Add tests for add_repo_from_repodata_json in test_database
* Remove fake_signatures in favor of optional
* Add clean_dependencies to Request::Update
* Allow pins without installed repo
* Add more solver tests
* Filename repodata fallback
* Fix repodata test
* Add channel specific solver test
* Add solver conflict test
Ayaz Salikhov