[#4401] Use extracted add_to_program method
[#4401] Use extracted add_to_program method

When importing projects from Optimy use the add_to_program method to
inherit all the information from the program, that a newly created
project under that program would.

akvo/akvo-rsr,akvo/akvo-rsr,akvo/akvo-rsr,akvo/akvo-rsr