[DO-981] qt package (!15)

Co-authored-by: aleksandr.vodyanov <aleksandr.vodyanov@avroid.tech>
Reviewed-on: https://git.avroid.tech/Conan/conan_build/pulls/15

recipes/expat/all/test_package_module/CMakeLists.txt

@@ -0,0 +1,22 @@
+cmake_minimum_required(VERSION 3.10)
+project(test_package LANGUAGES C)
+
+find_package(EXPAT REQUIRED MODULE)
+
+add_executable(${PROJECT_NAME} ../test_package/test_package.c)
+target_link_libraries(${PROJECT_NAME} PRIVATE EXPAT::EXPAT)
+
+# Test whether variables from https://cmake.org/cmake/help/latest/module/FindEXPAT.html
+# are properly defined in conan generators
+set(_custom_vars
+    EXPAT_INCLUDE_DIRS
+    EXPAT_LIBRARIES
+    EXPAT_FOUND
+)
+foreach(_custom_var ${_custom_vars})
+    if(DEFINED ${_custom_var})
+        message(STATUS "${_custom_var}: ${${_custom_var}}")
+    else()
+        message(FATAL_ERROR "${_custom_var} not defined")
+    endif()
+endforeach()