Created Clipboard API (markdown)

Clipboard-API.md

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+With FAWE installed, you can register a new ClipboardFormat through the API
+```Java
+ClipboardFormat.addFormat(new AbstractClipboardFormat("FAWE", "fawe") {
+    @Override
+    public ClipboardReader getReader(InputStream inputStream) throws IOException {
+        return new FaweFormat(MainUtil.getCompressedIS(inputStream));
+    }
+
+    @Override
+    public ClipboardWriter getWriter(OutputStream outputStream) throws IOException {
+        return getWriter(outputStream, 8);
+    }
+
+    @Override
+    public boolean isFormat(File file) {
+        return file.getName().endsWith(".fawe") || file.getName().endsWith(".bd");
+    }
+
+    @Override
+    public String getExtension() {
+        return "fawe";
+    }
+
+    public ClipboardWriter getWriter(OutputStream os, int compression) throws IOException {
+        FaweFormat writer = new FaweFormat(new FaweOutputStream(os));
+        writer.compress(compression);
+        return writer;
+    }
+
+    public DiskOptimizedClipboard getUncompressedReadWrite(File file) throws IOException {
+        return new DiskOptimizedClipboard(file);
+    }
+
+    public DiskOptimizedClipboard createUncompressedReadWrite(int width, int height, int length, File file) {
+        return new DiskOptimizedClipboard(width, height, length, file);
+    }
+});
+```
+
+The format will then be usable ingame: `//schem load <format> <file>`