aixxe

Fix post-build file move on Windows

1

This is the only issue I encountered when building USBemani for my controller on Windows. ``` [7/7] Linking CXX executable community_aixxe_mini-4-optical.elf FAILED: community_aixxe_mini-4-optical.elf cmd.exe /C "[...] && cd /D D:\usbemani\obj\community_aixxe_mini-4-optical...