Addons (#368)

* feat: (wip) torrent

credit to kuukiyomi

* fix: extensions -> addons

* fix: unified loader

* feat: (wip) modularity

* fix: addon ui

* feat: addon install/uninstall

---------

Co-authored-by: aayush262 <aayushthakur262006@gmail.com>

app/src/main/java/ani/dantotsu/addons/Addon.kt

@@ -0,0 +1,15 @@
+package ani.dantotsu.addons
+
+abstract class Addon {
+    abstract val name: String
+    abstract val pkgName: String
+    abstract val versionName: String
+    abstract val versionCode: Long
+
+    abstract class Installed(
+        override val name: String,
+        override val pkgName: String,
+        override val versionName: String,
+        override val versionCode: Long,
+    ) : Addon()
+}