create example assembler scripts for individual programs

firmware/example_program1.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+python assembler.py machine_code.txt program1.asm

firmware/example_program2.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+python assembler.py machine_code.txt program2.asm

firmware/example_program3.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+python assembler.py machine_code.txt program3.asm