[calamares] Move testing application out of intermediate dir

- src/modules doesn't seem like a really good place for stray sources
  for a testing application. Move it.

src/calamares/CMakeLists.txt

@@ -60,7 +60,10 @@ install( FILES ${CMAKE_SOURCE_DIR}/data/images/squid.svg
 )
 
 if( BUILD_TESTING )
+    # Don't install, these are just for enable_testing
     add_executable( loadmodule testmain.cpp )
     target_link_libraries( loadmodule PRIVATE Qt5::Core Qt5::Widgets calamares calamaresui )
-    # Don't install, it's just for enable_testing
+
+    add_executable( test_conf test_conf.cpp )
+    target_link_libraries( test_conf PUBLIC yamlcpp Qt5::Core )
 endif()

src/modules/CMakeLists.txt

@@ -10,12 +10,6 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src/libcalamaresui
 )
 
-if( BUILD_TESTING )
-    add_executable( test_conf test_conf.cpp )
-    target_link_libraries( test_conf yamlcpp Qt5::Core )
-    target_include_directories( test_conf PUBLIC ${YAMLCPP_INCLUDE_DIR} )
-endif()
-
 string( REPLACE " " ";" SKIP_LIST "${SKIP_MODULES}" )
 
 file( GLOB SUBDIRECTORIES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*" )