feat(api): split api into multiple apps (#1626)

Fixes #1622

- split the api into 4 apps: core, history, schedule, storage
- exploded the settings into testing/prod

api/libretime_api/schedule/router.py

@@ -0,0 +1,40 @@
+from rest_framework import routers
+
+from .views import (
+    ImportedPodcastViewSet,
+    PlaylistContentViewSet,
+    PlaylistViewSet,
+    PodcastEpisodeViewSet,
+    PodcastViewSet,
+    ScheduleViewSet,
+    ShowDaysViewSet,
+    ShowHostViewSet,
+    ShowInstanceViewSet,
+    ShowRebroadcastViewSet,
+    ShowViewSet,
+    SmartBlockContentViewSet,
+    SmartBlockCriteriaViewSet,
+    SmartBlockViewSet,
+    StationPodcastViewSet,
+    WebstreamMetadataViewSet,
+    WebstreamViewSet,
+)
+
+router = routers.DefaultRouter()
+router.register("playlist-contents", PlaylistContentViewSet)
+router.register("playlists", PlaylistViewSet)
+router.register("podcast-episodes", PodcastEpisodeViewSet)
+router.register("podcasts", PodcastViewSet)
+router.register("station-podcasts", StationPodcastViewSet)
+router.register("imported-podcasts", ImportedPodcastViewSet)
+router.register("schedule", ScheduleViewSet)
+router.register("show-days", ShowDaysViewSet)
+router.register("show-hosts", ShowHostViewSet)
+router.register("show-instances", ShowInstanceViewSet)
+router.register("show-rebroadcasts", ShowRebroadcastViewSet)
+router.register("shows", ShowViewSet)
+router.register("smart-block-contents", SmartBlockContentViewSet)
+router.register("smart-block-criteria", SmartBlockCriteriaViewSet)
+router.register("smart-blocks", SmartBlockViewSet)
+router.register("webstream-metadata", WebstreamMetadataViewSet)
+router.register("webstreams", WebstreamViewSet)