[UI Ember]: save picture from third-party service to our storage if it was not there

[ElenaSpb]

save picture from third-party service to our storage if it was not there

https://brainup.site/admin/swagger

use API from here https://github.com/Brain-up/brn/pull/2231

https://github.com/Brain-up/brn/blob/master/api-contract/api.raml

[lifeart]

@ElenaSpb could you specify supported file formats?

[ElenaSpb]

@ElenaSpb could you specify supported file formats?

@ElenaSpb could you specify supported file formats?

now on back-end side check is start on loading attemp, specification is set in application.properties

# The extensions allowed for upload unverified picture to cloud brn.resources.unverified-pictures.ext=png

[ElenaSpb]

@lifeart back is ready