* removed old tokenizer
* Added variadic macros, triggered by the last argument being named _, which will create a local list variable called 'args' containing all non-named arguments
* Made INES header macro fully configurable using the hflags macro to generate flags from keywords and mapper number
* added the 'string' macro function to produce a string token from a string value
* Added macros for setup boilerplate to nes.asm
* Rewrote the demo program to take advantage of the new macros, making it both shorter and easier to read
* Fixed comment spacing
* Stripped pretty much all raw assembly from the example program