Port batch files to bash scripts.

create_requirements.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+if ! which pigar > /dev/null
+then
+  >&2 echo 'Please install pigar to generate requirements.txt for your version of Python.'
+  echo 'Pigar can be installed with:'
+  echo '  pip install pigar'
+  echo 'For more information, see https://github.com/damnever/pigar'
+  exit 1
+fi
+
+pigar gen -f Code/requirements.txt Code/

nuitka_flywheel.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+python -m nuitka --follow-imports --standalone --output-dir="nuitka_out" "./Code/flywheel.py"

render_uml.sh

@@ -0,0 +1,9 @@
+#!/usr/local/env bash
+
+if ! which pyreverse > /dev/null
+then
+  >&2 echo 'pyreverse was not found. Please install pyreverse then try this script again.'
+  exit 1
+fi
+
+pyreverse -o png Code/ --output-directory uml/