ODPSH-18: Changes new package form

ckanext/odsh/fanstatic/bootstrap-multiselect.js

ckanext/odsh/fanstatic/multiselect.js

ckanext/odsh/i18n/de/LC_MESSAGES/ckanext-odsh.1.po

ckanext/odsh/public/bootstrap-multiselect.css

ckanext/odsh/public/bootstrap-multiselect.js

ckanext/odsh/templates/base.html

ckanext/odsh/templates/package/base_form_page.html

...odsh/templates/package/snippets/package_basic_fields.html

...h/templates/package/snippets/package_metadata_fields.html