Add html for show view and fix a url generation bug.

See merge request riconet-public/typo3/psvneo_reference_portal!7

Add list and filter styling

See merge request riconet-public/typo3/psvneo_reference_portal!6

Add
 - sass file (plugin.reference.scss)
 - filter-icon.svg
 - locallang entries for all strings in listing area

Update
 - Listing templates
 - LinkViewHelper.php to include new arg additionalArgumentsPrefix
 - ReferenceController view to include encodedFilter

Fix
 - filter js
 - Paginate template
 - label in tx_psvneoreferenceportal_domain_model_reference.php
 - bootstrap include in setup.typoscript

Add cacheable filter

See merge request riconet-public/typo3/psvneo_reference_portal!5

Add:
- ArrayStringCodec to en and decode filter hash
- FilterFactory to handle filter object creation
- GetFilterHashEID to fetch filter object by request
- ReferenceFilterMapper to enable filter hash in urls
- Reference.yml for pretty urls
- jquery.filter.js for dynamic filter results
- FilterTypeConverter to convert request to filter object
- Package json for FE dependencies
- Dependency to helhum/typoscript-rendering

Changed:
- All templates to fit the new filter logic

Removed:
- PersistentIndustryArrayObjectConverter and tests
- PersistentServiceArrayObjectConverter and tests

Add new fields and models

See merge request riconet-public/typo3/psvneo_reference_portal!4

Add:
 - Plugin option "limit"
 - Model Quote
 - Model Service
 - Model Industry
 - Reference fields teaserImage, headerImage, contentLeft contentRight
   and relatedReferences

Removed
 - Functional test for ReferenceProvider (comes back soon)
 - Custom cache mechanism
   (going to switch to core by using url based filter)

Update .gitlab-ci.yml

See merge request riconet-public/typo3/psvneo_reference_portal!3

Breaking/9.5 upgrade

See merge request riconet/typo3/extensions/psvneo_reference_portal!2

Add reference plugin.

See merge request riconet/typo3/extensions/rico_reference_portal!1