Add support for filtering CamSIS applications

Add function that filters CamSIS applications after they have been converted to SMI format. The filter term is a list of dictionaries, each dictionary entry indicating the value of an application property. An application must match all the dictionary entries of at least one item in the filter list, otherwise it will be excluded from the synchronisation process.

Add test for the application filter function.

Add job specification example of filtering.

Closes uis/devops/digital-admissions/legacy-smi#17