cmake find_package(imgui) examples

microsoft/vcpkg ports/imgui-node-editor/CMakeLists.txt :6

find_package(imgui CONFIG REQUIRED)

microsoft/vcpkg ports/imguizmo/CMakeLists.txt :6

find_package(imgui CONFIG REQUIRED)

microsoft/vcpkg ports/implot/CMakeLists.txt :4

find_package(imgui CONFIG REQUIRED)

microsoft/vcpkg ports/implot3d/CMakeLists.txt :15

find_package(imgui CONFIG REQUIRED)

microsoft/vcpkg scripts/test_ports/vcpkg-ci-hello-imgui/project/CMakeLists.txt :6

find_package(hello-imgui CONFIG REQUIRED)