GUI additions

.gitignore

README.md

ldvspec/Dockerfile

ldvspec/Dockerfile.base

ldvspec/docker/docker-compose-local.yml

ldvspec/docker/docker-compose-postgres-dev.yml

ldvspec/ldvspec.env

ldvspec/ldvspec.example.env

ldvspec/ldvspec/settings/local.py

ldvspec/lofardata/forms.py

.../lofardata/migrations/0010_dataproductfilter_help_text.py

...igrations/0011_workspecification_selected_workflow_tag.py

ldvspec/lofardata/migrations/0012_merge_20221213_1102.py

ldvspec/lofardata/models.py

ldvspec/lofardata/static/histogram_amcharts.js

ldvspec/lofardata/static/lofardata/styling/dias.css

ldvspec/lofardata/static/update_workflow.js

ldvspec/lofardata/templates/lofardata/base.html

ldvspec/lofardata/templates/lofardata/index.html

.../templates/lofardata/workspecification/create_update.html