Smaller networks - keyword_spotting_cnn_small_int8

Added: Baremetal folder for baremetal applications
Added: Baremetal application 'keyword_spotting_cnn_small_int8' as an
executable test. Run with ctest -R keyword_spotting_cnn_small_int8

Model taken from ML-zoo, run through vela, and hexdumped to C header
format.

Change-Id: I053d88a4319cb58020027d6007e83fd519a2af6e
diff --git a/applications/CMakeLists.txt b/applications/CMakeLists.txt
index 4950c51..291643f 100644
--- a/applications/CMakeLists.txt
+++ b/applications/CMakeLists.txt
@@ -20,7 +20,9 @@
 
 add_subdirectory(hello_world)
 
+add_subdirectory(baremetal)
+
 if (CMAKE_CXX_COMPILER_ID STREQUAL "ARMClang")
     # Only armclang supported for now
     add_subdirectory(trustzone_inference)
-endif()
+endif()
\ No newline at end of file