Plugins - Implemented enabling/disabling (doesnt work for devices)

Plugins - Disable plugins that caused a crash
Tray icon - Added menu items for quick access

src/Artemis.Storage/Repositories/PluginRepository.cs

@@ -0,0 +1,56 @@
+using System;
+using Artemis.Storage.Entities.Plugins;
+using Artemis.Storage.Repositories.Interfaces;
+using LiteDB;
+
+namespace Artemis.Storage.Repositories
+{
+    public class PluginRepository : IPluginRepository
+    {
+        private readonly LiteRepository _repository;
+
+        internal PluginRepository(LiteRepository repository)
+        {
+            _repository = repository;
+
+            _repository.Database.GetCollection<PluginEntity>().EnsureIndex(s => s.PluginGuid);
+            _repository.Database.GetCollection<PluginSettingEntity>().EnsureIndex(s => s.Name);
+            _repository.Database.GetCollection<PluginSettingEntity>().EnsureIndex(s => s.PluginGuid);
+        }
+
+        public void AddPlugin(PluginEntity pluginEntity)
+        {
+            _repository.Insert(pluginEntity);
+        }
+
+        public PluginEntity GetPluginByGuid(Guid pluginGuid)
+        {
+            return _repository.FirstOrDefault<PluginEntity>(p => p.PluginGuid == pluginGuid);
+        }
+
+        public void SavePlugin(PluginEntity pluginEntity)
+        {
+            _repository.Upsert(pluginEntity);
+        }
+
+        public void AddSetting(PluginSettingEntity pluginSettingEntity)
+        {
+            _repository.Insert(pluginSettingEntity);
+        }
+
+        public PluginSettingEntity GetSettingByGuid(Guid pluginGuid)
+        {
+            return _repository.FirstOrDefault<PluginSettingEntity>(p => p.PluginGuid == pluginGuid);
+        }
+
+        public PluginSettingEntity GetSettingByNameAndGuid(string name, Guid pluginGuid)
+        {
+            return _repository.FirstOrDefault<PluginSettingEntity>(p => p.Name == name && p.PluginGuid == pluginGuid);
+        }
+
+        public void SaveSetting(PluginSettingEntity pluginSettingEntity)
+        {
+            _repository.Upsert(pluginSettingEntity);
+        }
+    }
+}