* [presubmit] Enforce language attribute in projectt.yaml to be always set.
* Update documentation, better presubmit check, new project template.
* add docstring to templates.py
* Add example values in the project.yaml template and remove python value for now
* Add "project: c++" to 256 projects
* format
* Add labels and selective_unpack sections to the presubmit check
* fix incorrect auto_ccs format in three projects
* fix nss emails after rebase
* Added integration for qubes-core-qubesdb
Integration for qubesdb daemon used for communication between VMs.
* Build qubes fuzzers only for the appropriate sanitizer
input-proxy (the only fuzzer target for now) have only 1 UBSan call right
now, which doesn't make much sense to fuzz. Disable it, until
input-proxy gets more complex for that.