Tests/JBIG2: Add tests for transposed non-topleft text reference corners

This needed the same `jbig2` changes as for the non-transposed ones,
and the changes to it mentioned on #23780.

I used the same .ini files as for the non-transposed ones, except
that I added `-txt -Param -Transposed 1` as last line to each of them.

All three new files display fine in Chrome.
They all look busted in Firefox.
I think this is likey a bug in pdf.js that I'll report upstream.
(Reportedly they look fine in Acrobat on Android.)

Tests/LibGfx/TestImageDecoder.cpp

@@ -367,8 +367,11 @@ TEST_CASE(test_jbig2_decode)
         TEST_INPUT("jbig2/bitmap-symbol-textrefine.jbig2"sv),
         TEST_INPUT("jbig2/bitmap-symbol-symbolrefine.jbig2"sv),
         TEST_INPUT("jbig2/bitmap-symbol-textbottomleft.jbig2"sv),
+        TEST_INPUT("jbig2/bitmap-symbol-textbottomlefttranspose.jbig2"sv),
         TEST_INPUT("jbig2/bitmap-symbol-textbottomright.jbig2"sv),
+        TEST_INPUT("jbig2/bitmap-symbol-textbottomrighttranspose.jbig2"sv),
         TEST_INPUT("jbig2/bitmap-symbol-texttopright.jbig2"sv),
+        TEST_INPUT("jbig2/bitmap-symbol-texttoprighttranspose.jbig2"sv),
         TEST_INPUT("jbig2/bitmap-symbol-texttranspose.jbig2"sv),
     };