Add CMake installation rules (#2184)

Add installation rules for all the binary targets.

Targets are installed under `<CMAKE_INSTALL_PREFIX>/bin/<CONFIG>` where
`<CONFIG>` is `CMAKE_BUILD_TYPE` for single-config generators, e.g. Unix
Makefiles and Ninja, or the build configuration for multi-config
generators, e.g. Ninja Multi-Config and Visual Studio.

This creates the target `install` on Unix and `INSTALL` on Windows.

test_conformance/vulkan/shaders/CMakeLists.txt

@@ -44,4 +44,11 @@ else()
     endforeach()
 
     add_custom_target(vulkan_shaders DEPENDS ${vulkan_spirv_files})
+
+    include(GNUInstallDirs)
+
+    install(DIRECTORY
+                ${CMAKE_CURRENT_BINARY_DIR}
+            DESTINATION
+                ${CMAKE_INSTALL_BINDIR}/$<CONFIG>)
 endif()