[wip] Trade: expand SceneConverterFeature to 32 bits.

In the end this didn't need all 64 (which would be a stupid waste
anyway).

src/Magnum/Trade/AbstractSceneConverter.cpp

@@ -217,7 +217,7 @@ Debug& operator<<(Debug& debug, const SceneConverterFeature value) {
         /* LCOV_EXCL_STOP */
     }
 
-    return debug << "(" << Debug::nospace << reinterpret_cast<void*>(UnsignedByte(value)) << Debug::nospace << ")";
+    return debug << "(" << Debug::nospace << reinterpret_cast<void*>(UnsignedInt(value)) << Debug::nospace << ")";
 }
 
 Debug& operator<<(Debug& debug, const SceneConverterFeatures value) {

src/Magnum/Trade/AbstractSceneConverter.h

@@ -53,7 +53,7 @@ namespace Magnum { namespace Trade {
 
 @see @ref SceneConverterFeatures, @ref AbstractSceneConverter::features()
 */
-enum class SceneConverterFeature: UnsignedByte {
+enum class SceneConverterFeature: UnsignedInt {
     /**
      * Convert a mesh with
      * @ref AbstractSceneConverter::convert(const MeshData&).

src/Magnum/Trade/Test/AbstractSceneConverterTest.cpp

@@ -665,8 +665,8 @@ void AbstractSceneConverterTest::convertMeshToFileNotImplemented() {
 void AbstractSceneConverterTest::debugFeature() {
     std::ostringstream out;
 
-    Debug{&out} << SceneConverterFeature::ConvertMeshInPlace << SceneConverterFeature(0xf0);
+    Debug{&out} << SceneConverterFeature::ConvertMeshInPlace << SceneConverterFeature(0xdeaddead);
-    CORRADE_COMPARE(out.str(), "Trade::SceneConverterFeature::ConvertMeshInPlace Trade::SceneConverterFeature(0xf0)\n");
+    CORRADE_COMPARE(out.str(), "Trade::SceneConverterFeature::ConvertMeshInPlace Trade::SceneConverterFeature(0xdeaddead)\n");
 }
 
 void AbstractSceneConverterTest::debugFeatures() {