Add pixel conversion speed test
Add a tests directory where we can put tests programs that can
be useful during testing. Start with a speed test for the pixel
conversion routines.
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
new file mode 100644
index 0000000..fd47c15
--- /dev/null
+++ b/tests/CMakeLists.txt
@@ -0,0 +1,6 @@
+include_directories(${CMAKE_SOURCE_DIR}/common)
+
+add_library(test_util STATIC util.cxx)
+
+add_executable(pixelconv pixelconv.cxx)
+target_link_libraries(pixelconv test_util rfb)