Made API models internal. Removed Discord.Net.API.

src/Discord.Net.Rest/API/Common/EmbedImage.cs

@@ -0,0 +1,17 @@
+#pragma warning disable CS1591
+using Newtonsoft.Json;
+
+namespace Discord.API
+{
+    internal class EmbedImage
+    {
+        [JsonProperty("url")]
+        public string Url { get; set; }
+        [JsonProperty("proxy_url")]
+        public string ProxyUrl { get; set; }
+        [JsonProperty("height")]
+        public Optional<int> Height { get; set; }
+        [JsonProperty("width")]
+        public Optional<int> Width { get; set; }
+    }
+}