implement yande.re source

GallerySources/Gallery.Danbooru/Gallery.Danbooru.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.1</TargetFramework>
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <LangVersion>9.0</LangVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <LangVersion>9.0</LangVersion>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\Gallery.Util\Gallery.Util.csproj" />
+  </ItemGroup>
+</Project>

GallerySources/Gallery.Danbooru/GallerySource.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Threading.Tasks;
+using Gallery.Util.Interface;
+using Gallery.Util.Model;
+
+namespace Gallery.Danbooru
+{
+    public class GallerySource : IGallerySource
+    {
+        public string Name => "Danbooru";
+
+        public string HomePage => "https://danbooru.donmai.us";
+
+        public Task<GalleryItem[]> GetRecentItemsAsync(int page)
+        {
+            throw new NotImplementedException();
+        }
+
+        public void SetCookie()
+        {
+            throw new NotImplementedException();
+        }
+    }
+}