Adding LaTeX file generation functionality

Adds a new file "latex_pdf.py" that accepts three arguments via command line and generates a .tex file using the uspatent package.

### Included files
* latex_pdf.py
* macbeth.txt (creates some hilarious output)
* an \__init\__.py file needed to import the machine.py file

### Evoked like this:
```
python latex_pdf.py macbeth.txt example/folder/ examplefile
```