Prestashop plugin development

We need some changes to Prestashop and the development of two addons: - We need to extend marketplace sellers properties adding some additional fields. - We need a Prestashop addon to let our marketplace sellers to upload normal or 360° photos and let them insert hotspots in them. They can insert two different types of hotspot, products or navigation hotspot. Products Hotspot: a seller can tag one or more products (only his products) in a single hotspot, the seller can add multiple products hotspots to a single image; Navigation Hotspot: a seller can tag another Image (already inserted with the addon), the seller can tag only one image per hotspot. The seller can add multiple navigation hotspots to a single image. All images / hotspots are editable (can be updated, deleted) afterwards. - We need a prestashop addon to let our marketplace ADMIN create an experience object. An experience is composed of sellers and monuments. An Experience has a Nation (autocomplete object, with name and flag img), a City (autocomplete string), a Title (string), a Description (string), an image (upload image), and an array of elements (sellers or monuments). Sellers are picked from the marketplace sellers. The monuments are created during the adding experience process. All experiences are editable (can be updated, deleted) afterwards. All the information should be exposed through Prestashop REST API Webservice. A small part of the job is done already, in particular the experience list screen and the prestashop installation is configured already.