fix(import/subprocess): always use DI value during import

Closes CAM-1591
fix(customTask): expose Category in modeler
fix(customTask/palette): add FeatureContainer != null check to palette
docs(customTask): add dependencies
docs(customTask): add product configuration pictures
chore(release): use correct update site for chosen platform

- update version for maven plugins to resolve some bugs
- add mechanism to add release specific update site into eclipse using p2.inf files when installing plugin via p2 director to solve missing update site bug when pluin is not installed manually

related to CAM-1594
chore(release): missing file

related to CAM-1594
chore(release): missing file

related to CAM-1594
feat(customTask): update images
chore(dependencies): fix update site for graphiti
chore(.gitignore): add META-INF/p2.inf to ignored files
chore(release): use correct update site for chosen platform

- update version for maven plugins to resolve some bugs
- add mechanism to add release specific update site into eclipse using p2.inf files when installing plugin via p2 director to solve missing update site bug when pluin is not installed manually

related to CAM-1594
fix(update-site): remove outdated associate sites