Remove Static Configuration Class and .NET Core Prep (#2122)

* Remove static configuration class that required prior knowledge of when it was initialised to dependency injected method that ensures all configuration has already occured.

* Specify a different log name for the updater, require a path when running the Jackett updater

* Update to all .NET Standard packages

* Explicitly specify the restore project style

* Move automapper out of the  DI framework and put crude detection to prevent it from initializing more than once.

src/Jackett.Common/Models/Config/RuntimeSettings.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+
+namespace Jackett.Common.Models.Config
+{
+    public class RuntimeSettings
+    {
+        public bool TracingEnabled { get; set; }
+
+        public bool LogRequests { get; set; }
+
+        public string ClientOverride { get; set; }
+
+        public string ProxyConnection { get; set; }
+
+        public bool? DoSSLFix { get; set; }
+
+        public bool? IgnoreSslErrors { get; set; }
+
+        public string CustomDataFolder { get; set; }
+
+        public string BasePath { get; set; }
+
+        public bool NoRestart { get; set; }
+
+        public string CustomLogFileName { get; set; }
+
+        
+        public string DataFolder
+        {
+            get
+            {                
+                if (!string.IsNullOrWhiteSpace(this.CustomDataFolder))
+                {
+                    return this.CustomDataFolder;
+                }
+
+                if (System.Environment.OSVersion.Platform == PlatformID.Unix)
+                {
+                    return Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "Jackett");
+                }
+                else
+                {
+                    return Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData), "Jackett");
+                }
+            }
+        }
+    }
+}