cameo: add two test cases (exhibiting brokenness)

cameo/test/2/Makefile

@@ -0,0 +1,7 @@
+.PHONY:	all plot
+
+all:
+	./doit
+
+plot:
+	echo 'plot "in.gp" with lines, "out.gp" with lines' | gnuplot -persist

cameo/test/2/doit

@@ -0,0 +1,8 @@
+#!/bin/sh
+../../cameo <<EOF
+#gnuplot 3 in.gp
+#area 0.13
+gnuplot 110mil in.gp
+area 0.5mm
+write out.gp
+EOF

cameo/test/2/in.gp

@@ -0,0 +1,281 @@
+-5 -5
+55 -5
+55 30
+-5 30
+-5 -5
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+
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+
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+
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cameo/test/3/Makefile

@@ -0,0 +1,7 @@
+.PHONY:	all plot
+
+all:
+	./doit
+
+plot:
+	echo 'plot "in.gp" with lines, "out.gp" with lines' | gnuplot -persist

cameo/test/3/doit

@@ -0,0 +1,8 @@
+#!/bin/sh
+../../cameo <<EOF
+#gnuplot 3 in.gp
+#area 0.13
+gnuplot 110mil in.gp
+area 0.5mm
+write out.gp
+EOF