Merge branch 'release/1.8.12' into develop
Bumped version for development after release.
When importing acquisition processes also import cpv and acquisition nature.
Added missing resource values.
Translated purchase order documents to English.
Optimized code: Navigate up from the person, usually this has many fewer elements than top level units.
Bumped version for release of 1.8.13
Merge branch 'release/1.8.13'