Add tests for USE using Marchen font and text
From http://www.babelstone.co.uk/Fonts/Marchen.html
diff --git a/test/shaping/Makefile.am b/test/shaping/Makefile.am
index 57369fd..f2bb95b 100644
--- a/test/shaping/Makefile.am
+++ b/test/shaping/Makefile.am
@@ -62,6 +62,7 @@
tests/spaces.tests \
tests/simple.tests \
tests/use.tests \
+ tests/use-marchen.tests \
tests/vertical.tests \
tests/zero-width-marks.tests \
$(NULL)
diff --git a/test/shaping/fonts/sha1sum/85414f2552b654585b7a8d13dcc3e8fd9f7970a3.ttf b/test/shaping/fonts/sha1sum/85414f2552b654585b7a8d13dcc3e8fd9f7970a3.ttf
new file mode 100644
index 0000000..18881fe
--- /dev/null
+++ b/test/shaping/fonts/sha1sum/85414f2552b654585b7a8d13dcc3e8fd9f7970a3.ttf
Binary files differ
diff --git a/test/shaping/tests/use-marchen.tests b/test/shaping/tests/use-marchen.tests
new file mode 100644
index 0000000..6497178
--- /dev/null
+++ b/test/shaping/tests/use-marchen.tests
@@ -0,0 +1,35 @@
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