build: subpackages implementation (#164)

* migrate to hatch

* reorder tests

* generic fixtures

* straight forward conftest

* fix docs generation

* fix tox environments

* reformat tomls

* cleanup pyproject

* some play with renaming

* move root conftest into pytest plugins

* fix setup script

* move fixtures to __init__.py

* remove duplicate fixtures

* disable pylint warning

* simplify configuration fixture

* remove empty conftest

* remove crap from local pyprojects

ahriman-triggers/package/share/ahriman/settings/ahriman.ini.d/00-triggers.ini

@@ -0,0 +1,57 @@
+[build]
+; List of well-known triggers. Used only for configuration purposes.
+triggers_known[] = ahriman.core.archive.ArchiveTrigger
+triggers_known[] = ahriman.core.distributed.WorkerLoaderTrigger
+triggers_known[] = ahriman.core.distributed.WorkerTrigger
+triggers_known[] = ahriman.core.support.KeyringTrigger
+triggers_known[] = ahriman.core.support.MirrorlistTrigger
+; List of worker nodes addresses used for build process, e.g.:
+;     workers = http://10.0.0.1:8080 http://10.0.0.3:8080
+; Empty list means run on the local instance.
+;workers =
+
+[keyring]
+; List of configuration section names for keyring generator plugin, e.g.:
+;     target = keyring-trigger
+target =
+
+; Keyring generator trigger sample.
+;[keyring-trigger]
+; Generator type name.
+;type = keyring-generator
+; Optional keyring package description.
+;description=
+; Optional URL to the repository homepage.
+;homepage=
+; Keyring package licenses list.
+;license = Unlicense
+; Optional keyring package name.
+;package =
+; Optional packager PGP keys list. If none set, it will read from database.
+;packagers =
+; List of revoked PGP keys.
+;revoked =
+; List of master PGP keys. If none set, the sign.key value will be used.
+;trusted =
+
+[mirrorlist]
+; List of configuration section names for mirrorlist generator plugin, e.g.:
+;     target = mirrorlist-trigger
+target =
+
+; Mirror list generator trigger sample.
+;[mirrorlist-trigger]
+; Generator type name.
+;type = mirrorlist-generator
+; Optional mirrorlist package description.
+;description=
+; Optional URL to the repository homepage.
+;homepage=
+; Mirrorlist package licenses list.
+;license = Unlicense
+; Optional mirrorlist package name.
+;package =
+; Absolute path to generated mirrorlist file, usually path inside /etc/pacman.d directory.
+;path =
+; List of repository mirrors.
+;servers =