Extract opening a comic from YACReaderLibrary to its own file

And send a new param `--readingListId` to tell YACReader that the comic is opened from a reading list.

YACReaderLibrary/db/comic_model.h

@@ -129,6 +129,7 @@ public:
     bool isFavorite(const QModelIndex &index);
 
     ComicModel::Mode getMode() { return mode; }
+    unsigned long long int getSourceId() { return sourceId; }
 
     QHash<int, QByteArray> roleNames() const override;