Add Fedora and Arch package recipes (#24)

* Package Ferese for Fedora and Arch releases

* Build release packages alongside workspace checks

* Include dependency licenses and software GPU test drivers

* Limit package checks to release PRs and fix Arch Cargo dependency

* Prepare Ferese 0.1.0-beta

* Release config locks before closing inherited file descriptions

* Install the lock PAM policy for native release checks

* Include xauth in distribution package test dependencies

* Regenerate Arch Git package metadata

* Run package checks with an explicit UTC timezone

* Remove unused bundled fonts and accept installed license receipts

* Format the system font test helper

* Load an installed font for headless text rendering checks

* Isolate package test runtimes and reap container child processes

README.md

@@ -58,6 +58,8 @@ also include desktop controls; their features depend on the shell and tools you
 
 ## Install
 
+Fedora and Arch package builds are covered in [Packages and releases](docs/packaging.md).
+
 Start with the [dependencies](docs/installation.md#requirements), then clone Ferese and
 build it as your normal user: