add content blocker (#5)

* refactored code
added deluge support
added transmission support
added content blocker
added blacklist and whitelist

* increased level on some logs; updated test docker compose; updated dev appsettings

* updated docker compose and readme

* moved some logs

* fixed env var typo; fixed sonarr and radarr default download client

code/test/data/deluge/config/blocklist.conf

@@ -0,0 +1,15 @@
+{
+    "file": 1,
+    "format": 1
+}{
+    "check_after_days": 4,
+    "last_update": 0.0,
+    "list_compression": "",
+    "list_size": 0,
+    "list_type": "",
+    "load_on_start": false,
+    "timeout": 180,
+    "try_times": 3,
+    "url": "",
+    "whitelisted": []
+}