Make GearsNear and CheckGearNear check gears across wrap world edge
This fixes hog detection of mine, sticky mine, resurrector, seduction and crate across the world edge.
Air mine is only partially fixed.
#libraries have already been searched in main CMakeLists.txt
include_directories(${LIBAV_INCLUDE_DIR})
add_library(avwrapper avwrapper.c)
set_target_properties(avwrapper PROPERTIES
VERSION 1.0
SOVERSION 1.0)
target_link_libraries(avwrapper ${LIBAV_LIBRARIES})
install(TARGETS avwrapper RUNTIME DESTINATION ${target_binary_install_dir}
LIBRARY DESTINATION ${target_library_install_dir}
ARCHIVE DESTINATION ${target_library_install_dir})