Added FindFastGLTF.cmake, FindGLM.cmake, and FindSTB.cmake scripts.

3rdparty/CMake/FindFastGLTF.cmake

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+# Looks for the environment variable:
+# FASTGLTF_PATH
+
+# Sets the variables :
+# FASTGLTF_INCLUDE_DIR
+# FASTGLTF_LIBRARY
+
+# FastGLTF_FOUND
+
+set(FASTGLTF_PATH $ENV{FASTGLTF_PATH})
+
+if ("${FASTGLTF_PATH}" STREQUAL "")
+  set(FASTGLTF_PATH "${LOCAL_3RDPARTY}/fastgltf")
+endif()
+
+message("FASTGLTF_PATH = " "${FASTGLTF_PATH}")
+
+# After the fastgltf INSTALL project ran, the release library resides in 3rdparty/fastgltf/lib
+# Unfortunately that is always only one build target.
+# The 3rdparty.cmake script builds both Debug and Release targets under Windows but installs only the the Release target.
+# If you need to run the GLTF_renderer as Debug target, copy the files from 3rdparty\fastgltf\build\<msc-toolset>\Debug to 3rdparty\fastgltf\lib
+
+set(FASTGLTF_INCLUDE_DIR "${FASTGLTF_PATH}/include")
+message("FASTGLTF_INCLUDE_DIR = " "${FASTGLTF_INCLUDE_DIR}")
+
+find_library(FASTGLTF_LIBRARY NAMES fastgltf PATHS "${FASTGLTF_PATH}/lib")
+message("FASTGLTF_LIBRARY = " "${FASTGLTF_LIBRARY}")
+
+include(FindPackageHandleStandardArgs)
+
+find_package_handle_standard_args(FastGLTF DEFAULT_MSG FASTGLTF_INCLUDE_DIR FASTGLTF_LIBRARY)
+
+mark_as_advanced(FASTGLTF_INCLUDE_DIR FASTGLTF_LIBRARY)
+
+message("FastGLTF_FOUND = " "${FastGLTF_FOUND}")
+

3rdparty/CMake/FindGLM.cmake

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+# Looks for the environment variable:
+# GLM_PATH
+
+# Sets the variables :
+# GLM_INCLUDE_DIR
+
+# GLM_FOUND
+
+set(GLM_PATH $ENV{GLM_PATH})
+
+if ("${GLM_PATH}" STREQUAL "")
+  set(GLM_PATH "${LOCAL_3RDPARTY}/glm")
+endif()
+
+message("GLM_PATH = " "${GLM_PATH}")
+
+set(GLM_INCLUDE_DIR "${GLM_PATH}")
+message("GLM_INCLUDE_DIR = " "${GLM_INCLUDE_DIR}")
+
+include(FindPackageHandleStandardArgs)
+
+find_package_handle_standard_args(GLM DEFAULT_MSG GLM_INCLUDE_DIR)
+
+mark_as_advanced(GLM_INCLUDE_DIR)
+
+message("GLM_FOUND = " "${GLM_FOUND}")

3rdparty/CMake/FindSTB.cmake

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+# Looks for the environment variable:
+# STB_PATH
+
+# Sets the variables :
+# STB_INCLUDE_DIR
+
+# STB_FOUND
+
+set(STB_PATH $ENV{STB_PATH})
+
+if ("${STB_PATH}" STREQUAL "")
+  set(STB_PATH "${LOCAL_3RDPARTY}/stb")
+endif()
+
+message("STB_PATH = " "${STB_PATH}")
+
+set(STB_INCLUDE_DIR "${STB_PATH}")
+message("STB_INCLUDE_DIR = " "${STB_INCLUDE_DIR}")
+
+include(FindPackageHandleStandardArgs)
+
+find_package_handle_standard_args(STB DEFAULT_MSG STB_INCLUDE_DIR)
+
+mark_as_advanced(STB_INCLUDE_DIR)
+
+message("STB_FOUND = " "${STB_FOUND}")