cmake poly2tri examples

google/filament third_party/libassimp/code/CMakeLists.txt :895 

find_package(poly2tri CONFIG REQUIRED)

vseasky/VersaAssistant assimp/code/CMakeLists.txt :936 

find_package(poly2tri CONFIG REQUIRED)

MBU-Team/OpenMBU engine/lib/assimp/code/CMakeLists.txt :934 

find_package(poly2tri CONFIG REQUIRED)

meemknight/ourCraft thirdparty/assimp-5.2.4/code/CMakeLists.txt :935 

find_package(poly2tri CONFIG REQUIRED)