Check if all the attainments in excludedPartialAttainments.csv should be excluded

[valtterikantanen]

excludedPartialAttainments.csv has over 170,000 attainments that are not brought to sis-db from sis-importer-db. There's at least one example when attainments in the list shouldn't have been excluded (see #4396).

In order to fix these mistakes, it needs to be figured out if there are more attainments in the CSV file that shouldn't be there. My guess is that it has a lot of attainments that shouldn't be excluded because they are part of a ModuleAttainment and not a CourseUnitAttainment. Only if there are multiple CourseUnitAttainments that are acually the same attainment, the partial attainments should be excluded. Study modules are ignored in total credit calculations etc. anyway so we definitely need the CourseUnitAttainments that are included in the study module attainment.

However, it must first be verified that the attainments that need to be excluded are not part of a ModuleAttainment so that they are not incorrectly removed from the list.

Also: over 160,000 (92%) of the attainments in the list are not in sis-importer-db?