Framework changes

[Hnto]

Changelog

• Add availability to retrieve current connection/storage connector from a storage handler

public function getConnector(): StorageConnector

• add moveUploadedFiles inside request helper
  • The methods loops through all the uploaded files within a form and moves them to the $destination

public function moveUploadedFiles($destination)

• modify foil rendering folders retrieval
  • There is no need to provide the full path to the template anymore. Only Units/{UNIT_NAME}/templates
• update composer
• update README