WIP Windows 10

Dependencies finally installed
Removal of useless code
Big cleanup in XAML styles (override colors the correct way)

Win10App/ViewModels/GroupsVm.cs

@@ -0,0 +1,57 @@
+using Autofac;
+using ModernKeePass.Domain.AOP;
+using ModernKeePass.Domain.Entities;
+using ModernKeePass.Domain.Enums;
+using ModernKeePass.Domain.Interfaces;
+using ModernKeePass.ViewModels.ListItems;
+
+namespace ModernKeePass.ViewModels
+{
+    public class GroupsVm : NotifyPropertyChangedBase
+    {
+        private string _title;
+        private string _newGroupName;
+
+        public string Title
+        {
+            get => _title;
+            set
+            {
+                _title = value;
+                OnPropertyChanged(nameof(Title));
+            }
+        }
+
+        // TODO: check why binding not working
+        public string NewGroupName
+        {
+            get => _newGroupName;
+            set
+            {
+                _newGroupName = value;
+                OnPropertyChanged(nameof(NewGroupName));
+            }
+        }
+
+        public GroupItemVm RootItemVm { get; set; }
+
+        public GroupsVm(): this(App.Container.Resolve<IDatabaseService>().RootGroupEntity)
+        { }
+
+        public GroupsVm(GroupEntity groupEntity)
+        {
+            Title = groupEntity.Name;
+            RootItemVm = new GroupItemVm(groupEntity, null);
+        }
+
+        public void AddNewGroup(string groupName = "")
+        {
+            var group = new GroupEntity
+            {
+                Name = groupName,
+                Icon = Icon.Folder,
+            };
+            RootItemVm.Children.Add(new GroupItemVm(group, RootItemVm));
+        }
+    }
+}