Reorganize verif and create packages

Split generator and runner scripts
Add package setup
Add py-dev-env.sh/.bash to allow editing source files during dev
Update README.md with installation info

Signed-off-by: Jeremy Johnson <jeremy.johnson@arm.com>
Change-Id: I172fe426d99e2e9aeeacedc8b8f3b6a79c8bd39d
diff --git a/scripts/py-dev-env.sh b/scripts/py-dev-env.sh
new file mode 100644
index 0000000..904ff80
--- /dev/null
+++ b/scripts/py-dev-env.sh
@@ -0,0 +1,22 @@
+# Copyright (c) 2021-2022 Arm Limited.
+# SPDX-License-Identifier: Apache-2.0
+
+# Source this script to install the python tosa tools as editable:
+#       . scripts/py-dev-env.sh
+
+# NOTE: This script is needed to fix up PYTHONPATH due to a bug
+# in setuptools that does not support multiple package_dirs
+# properly: https://github.com/pypa/setuptools/issues/230
+
+if [ -z "$VIRTUAL_ENV" ]; then
+    echo "Please source this within a python virtual env"
+    return
+fi
+
+if [ -e "setup.cfg" ]; then
+    pip install -e .
+    export PYTHONPATH=$PWD/scripts:$PWD/thirdparty/serialization_lib/python
+    echo "Set PYTHONPATH=$PYTHONPATH"
+else
+    echo "Please source this from the root of reference_model"
+fi