#1 initial sending media files support

stbf-api/src/main/java/ru/penkrat/stbf/api/Media.java

@@ -0,0 +1,28 @@
+package ru.penkrat.stbf.api;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.ToString;
+
+import java.util.function.Supplier;
+
+@Getter
+@Builder
+@ToString(of = {"mediaType", "url"})
+public class Media {
+
+    private MediaType mediaType;
+
+    private String url;
+
+    private String fileId;
+
+    private Supplier<byte[]> data;
+
+    private Integer duration;
+
+    private Integer width;
+
+    private Integer height;
+
+}

stbf-api/src/main/java/ru/penkrat/stbf/api/MediaType.java

@@ -0,0 +1,9 @@
+package ru.penkrat.stbf.api;
+
+public enum MediaType {
+    ANIMATION,
+    AUDIO,
+    PHOTO,
+    VIDEO,
+    VOICE
+}

stbf-api/src/main/java/ru/penkrat/stbf/api/Screen.java

@@ -2,13 +2,17 @@ package ru.penkrat.stbf.api;
 
 public interface Screen {
 
-	String getText();
+    String getText();
 
-	default Keyboard getKeyboard() {
-		return null;
-	}
+    default Media getMedia() {
+        return null;
+    }
 
-	default ScreenProperties getScreenProperties() {
-		return ScreenProperties.DEFAULT;
-	}
+    default Keyboard getKeyboard() {
+        return null;
+    }
+
+    default ScreenProperties getScreenProperties() {
+        return ScreenProperties.DEFAULT;
+    }
 }