actually start to bring structure into the project

make it resilent against restarts/reloads
remove all user interaction for resource gathering
compute hashes on first time file resolving and on updates of said file on resolving

MareSynchronos/FileCacheDB/FileCache.cs

@@ -10,5 +10,6 @@ namespace MareSynchronos.FileCacheDB
         public string Hash { get; set; }
         public string Filepath { get; set; }
         public string LastModifiedDate { get; set; }
+        public int Version { get; set; }
     }
 }