Added most of the settings code, doesn't work because SQLite is weird

src/Artemis.Core/Plugins/Models/PluginSettings.cs

@@ -0,0 +1,35 @@
+using System.Collections.Generic;
+using System.Linq;
+using Artemis.Storage.Entities;
+using Artemis.Storage.Repositories;
+using Newtonsoft.Json;
+
+namespace Artemis.Core.Plugins.Models
+{
+    public class PluginSettings
+    {
+        private readonly PluginInfo _pluginInfo;
+        private readonly ISettingRepository _settingRepository;
+        private readonly Dictionary<string, SettingEntity> _settingEntities;
+
+        public PluginSettings(PluginInfo pluginInfo, ISettingRepository settingRepository)
+        {
+            _pluginInfo = pluginInfo;
+            _settingRepository = settingRepository;
+            _settingEntities = settingRepository.GetByPluginGuid(_pluginInfo.Guid).ToDictionary(se => se.Name);
+        }
+
+        public PluginSetting<T> GetSetting<T>(string name, T defaultValue = default)
+        {
+            if (_settingEntities.ContainsKey(name))
+                return new PluginSetting<T>(_pluginInfo, _settingRepository, _settingEntities[name]);
+
+            var settingEntity = new SettingEntity {Name = name, PluginGuid = _pluginInfo.Guid, Value = JsonConvert.SerializeObject(defaultValue)};
+            _settingRepository.Add(settingEntity);
+            _settingRepository.Save();
+
+            _settingEntities.Add(name, settingEntity);
+            return GetSetting(name, defaultValue);
+        }
+    }
+}