Updated controller to blueprints. Webassets need to be readded (also to templates)

ckanext/odsh/collection/controller.py

ckanext/odsh/collection/helpers.py

ckanext/odsh/controller.py

ckanext/odsh/helpers.py

ckanext/odsh/helpers_tpsh.py

ckanext/odsh/pdf_to_thumbnail/helpers.py

ckanext/odsh/plugin.py

ckanext/odsh/profiles/odsh_dcat_de_profile.py

ckanext/odsh/templates/base.html

ckanext/odsh/templates/datarequests/comment.html

...xt/odsh/templates/datarequests/snippets/comment_form.html

ckanext/odsh/templates/error_document_template.html

ckanext/odsh/templates/header.html

ckanext/odsh/templates/home/index.html

ckanext/odsh/templates/organization/read.html

ckanext/odsh/templates/package/base.html

ckanext/odsh/templates/package/edit_base.html

ckanext/odsh/templates/package/new_resource.html

ckanext/odsh/templates/package/read.html

ckanext/odsh/templates/package/resource_edit_base.html