Move toolflow files to top directory

381_tf.sh

cpre381-toolflow.pdf

internal/.config.ini

internal/Mars/MARS_CPRE381.jar

internal/ModelSimContainer/.gitkeep

internal/boilerplate_mips/addiseq.s

internal/boilerplate_mips/fibonacci.s

internal/boilerplate_mips/grendel.s

internal/boilerplate_mips/lab3Seq.s

internal/boilerplate_mips/simplebranch.s

internal/boilerplate_src/MIPS_types.vhd

internal/boilerplate_src/README.md

internal/boilerplate_src/TopLevel/MIPS_Processor.vhd

internal/boilerplate_src/TopLevel/mem.vhd

internal/config.ini

internal/snthpy/__init__.py

internal/snthpy/build.py

internal/snthpy/config_parser.py

internal/snthpy/generate_project.py

internal/snthpy/parse_timings.py