Add samples ImmutableSampler, InitTexture, InputAttachment (#315)

+ slightly adjust some other samples.

samples/11_InitShaders/CMakeLists.txt

@@ -25,6 +25,7 @@ set(SOURCES
   11_InitShaders.cpp
   ../utils/shaders.cpp
   ../utils/utils.cpp
+  ../../glslang/StandAlone/ResourceLimits.cpp
 )
 
 source_group(headers FILES ${HEADERS})