AnyImageImporter: recognize OpenEXR files.

src/MagnumPlugins/AnyImageImporter/AnyImageImporter.cpp

@@ -56,6 +56,8 @@ void AnyImageImporter::doOpenFile(const std::string& filename) {
         plugin = "BmpImporter";
     else if(Utility::String::endsWith(filename, ".dds"))
         plugin = "DdsImporter";
+    else if(Utility::String::endsWith(filename, ".exr"))
+        plugin = "OpenExrImporter";
     else if(Utility::String::endsWith(filename, ".gif"))
         plugin = "GifImporter";
     else if(Utility::String::endsWith(filename, ".hdr"))

src/MagnumPlugins/AnyImageImporter/AnyImageImporter.h

@@ -68,6 +68,7 @@ Supported formats:
     plugin that provides it
 -   Graphics Interchange Format (`*.gif`), loaded with any plugin that provides
     `GifImporter`
+-   OpenEXR (`*.exr`), loaded with any plugin that provides `OpenExrImporter`
 -   Radiance HDR (`*.hdr`), loaded with any plugin that provides `HdrImporter`
 -   JPEG (`*.jpg`, `*.jpe`, `*.jpeg`), loaded with @ref JpegImporter or any
     other plugin that provides it