Add samples OcclusionQuery, PipelineCache, PipelineDerivative, PushConstants, and PushDescriptors. (#325)

+ some minor changes in some samples, math, shaders, and utils.

samples/PipelineCache/CMakeLists.txt

@@ -0,0 +1,44 @@
+# Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cmake_minimum_required(VERSION 3.2)
+
+project(PipelineCache)
+
+set(HEADERS
+  ../utils/geometries.hpp
+  ../utils/math.hpp
+  ../utils/shaders.hpp
+  ../utils/utils.hpp
+)
+
+set(SOURCES
+  PipelineCache.cpp
+  ../utils/math.cpp
+  ../utils/shaders.cpp
+  ../utils/utils.cpp
+  ../../glslang/StandAlone/ResourceLimits.cpp
+)
+
+source_group(headers FILES ${HEADERS})
+source_group(sources FILES ${SOURCES})
+
+add_executable(PipelineCache
+  ${HEADERS}
+  ${SOURCES}
+)
+
+set_target_properties(PipelineCache PROPERTIES FOLDER "Samples")
+target_include_directories(PipelineCache PUBLIC ${CMAKE_SOURCE_DIR}/glslang)
+target_link_libraries(PipelineCache PUBLIC glslang SPIRV "${Vulkan_LIBRARIES}")