CMake install configuration

This is 99% for *nix based operating systems; it may work elsewhere but
it's not recommended.

cmake/server.cmake

@@ -52,3 +52,5 @@ set_output_dirs(${SERVER_BINARY})
 if(POST_SERVER_CONFIGURE_FUNCTION)
     cmake_language(CALL ${POST_SERVER_CONFIGURE_FUNCTION})
 endif()
+
+install(TARGETS ${SERVER_BINARY} RUNTIME DESTINATION .)