Submit integration
Description
Implements the Submit script API.
Changes
- Minor updates in dependencies and build system.
 
Additions
- Submit script API endpoint and callback event handler.
 
Test and Review
To be filled in by the reviewers
- 
All of the methods are commented to expectation  - 
The methods are tested to satisfaction  - 
There are no unnecessary files present in the MR  - 
The continuous integration has no problems with the MR  - 
The MR is filled in as requested (including labels, milestones, and reviewers)  - 
The documentation is up-to-date  - 
All nullable parameters are marked as such  
Edited  by Luc Everse