v1.0.0

Changelog:

• Changed implementation of Emulator::new to only accept a ReadWritable struct.
• Now the bus is shared between the Emulator struct and the Decoder struct.
• Emulator will now read from 0xfffc and 0xfffd for the reset vector.
• Replaced Emulator::run_until_completion to Emulator::run_until_break.
• Added software interrupts to stop the emulator.
• Changed the example program examples/fibonacci.bin to reflect the changes made to the emulator.