firmtool v1.2

• Add support for NTR crypto and hardcode the keys used by Kernel9Loader. By default type nand-retail is the default, use -t {nand-retail, nand-dev, spi-retail, spi-dev} to change that.
• Fix -m handling, where Process9 was extracted even if this option was not set.
• Fix padding bugs.
• Fix setup.py.