[Mediaserver] Circumvent Jackson bug where class requires an empty co…

…nstructor even if the object gets used in an empty list

src/main/kotlin/com/github/schaka/janitorr/mediaserver/library/PathInfo.kt

@@ -1,5 +1,7 @@
 package com.github.schaka.janitorr.mediaserver.library
 
-data class PathInfo(
+class PathInfo(
         val Path: String?
-)
+) {
+    constructor(): this(null)
+}