re-add old methods to TemplateFactory

Author: erdos

java-src/io/github/erdos/stencil/TemplateFactory.java

@@ -5,6 +5,16 @@
 
 public interface TemplateFactory {
 
+    @Deprecated
+    default PreparedTemplate prepareTemplateFile(File inputTemplateFile, PrepareOptions options) throws IOException {
+        return prepareTemplateFile(inputTemplateFile.toPath(), options);
+    }
+
+    @Deprecated
+    default PreparedTemplate prepareTemplateFile(File inputTemplateFile) throws IOException {
+        return prepareTemplateFile(inputTemplateFile.toPath());
+    }
+
     /**
      * Preprocesses a raw template file.
      *