Add toString to models

src/main/kotlin/org/koitharu/kotatsu/parsers/model/Manga.kt

@@ -155,4 +155,8 @@ class Manga(
 		result = 31 * result + source.hashCode()
 		return result
 	}
+
+	override fun toString(): String {
+		return "Manga($id - \"$title\" [$url] - $source)"
+	}
 }

src/main/kotlin/org/koitharu/kotatsu/parsers/model/MangaChapter.kt

@@ -67,4 +67,8 @@ class MangaChapter(
 		result = 31 * result + source.hashCode()
 		return result
 	}
+
+	override fun toString(): String {
+		return "MangaChapter($id - #$number [$url] - $source)"
+	}
 }

src/main/kotlin/org/koitharu/kotatsu/parsers/model/MangaPage.kt

@@ -14,12 +14,6 @@ class MangaPage(
 	 * @see MangaParser.getPageUrl
 	 */
 	val url: String,
-    /**
-     * Absolute link to the chapter or website home page.
-     * Used in Referer header
-     */
-    @Deprecated("Referer header should be added based on source domain")
-    val referer: String,
 	/**
 	 * Absolute url of the small page image if exists, null otherwise
 	 */
@@ -35,7 +29,6 @@ class MangaPage(
 
 		if (id != other.id) return false
 		if (url != other.url) return false
-        if (referer != other.referer) return false
 		if (preview != other.preview) return false
 		return source == other.source
 	}
@@ -43,9 +36,12 @@ class MangaPage(
 	override fun hashCode(): Int {
 		var result = id.hashCode()
 		result = 31 * result + url.hashCode()
-        result = 31 * result + referer.hashCode()
 		result = 31 * result + (preview?.hashCode() ?: 0)
 		result = 31 * result + source.hashCode()
 		return result
 	}
+
+	override fun toString(): String {
+		return "MangaPage($id [$url] - $source)"
+	}
 }

src/main/kotlin/org/koitharu/kotatsu/parsers/model/MangaTag.kt

@@ -34,4 +34,8 @@ class MangaTag(
 		result = 31 * result + source.hashCode()
 		return result
 	}
+
+	override fun toString(): String {
+		return "MangaTag($key \"$title\" - $source)"
+	}
 }