[FlashPy]: add more functions for FlashPy matrices.
[FlashPy]: add more functions for FlashPy matrices.

flashxio/FlashX,icoming/FlashX,flashxio/FlashX,icoming/FlashX,flashxio/FlashX,flashxio/FlashX,icoming/FlashX,icoming/FlashX,icoming/FlashX,flashxio/FlashX,flashxio/FlashX