得到ArduinoAVR文件根路径
arduino.金宝appsupportpkg.getAVRLibraryRoot
|arduino.金宝appsupportpkg.getBoardInfo
|arduino.金宝appsupportpkg.getIDERoot
|arduino.金宝appsupportpkg.getLibraryRoot
|arduino.金宝appsupportpkg.getSAMDLibraryRoot
|arduino.金宝appsupportpkg.getSAMDRoot
|arduino.金宝appsupportpkg.getSAMLibraryRoot
|arduino.金宝appsupportpkg.getSAMRoot