Added ng-flow dependency for file upload.
Added flow module dependency and flow factory provider configuration.
Added flow.min.js, ng-flow.min.js references.
Add prioritizeFirstAndLastChunk to try optimising file chunks assembly
process.
Added new ANNEXE_UPLOAD_URL to HB_API constants.
Draft file upload with ng-flow.
Make use of constant for ng-flow provider configuration.
ANNEXE_UPLOAD_URL.
Code clean up now exclusively relying on configuration for
ANNEXE_UPLOAD_URL.
Make use of config.ngflow.opts.query to pass elfin ID_G and Id
information to the server while performing POST for file upload.
Currently only allow a single file per upload operation.
Upload directives reminder.
Improving upload layout, still in dev. draft.