[WIP] A naive attempt to switch to maven 3.1.1

[KroArtem]

Looking at https://github.com/apache/maven-artifact-transfer/pull/20#issuecomment-752454346 I thought it might be a good idea to finish switching plugins to Maven 3.1.1 and retire maven-artifact-transfer plugin.

A quick search in apache organization showed several usages: https://github.com/search?p=1&q=maven-artifact-transfer+user%3Aapache+extension%3Axml+path%3A%2F&type=Code

I've followed recommendations from this page but it seem to lack some information, maybe it'd be good to extend it.

1. It's not clear whether sisu-maven-plugin's goals replace existing plexus-component-metadata goal.
2. Probably due to 1) lookup() method fails with ComponentLookupException

[KroArtem]

@rfscholte , since you wrote the Plugin migration to Maven 3.1+ dependencies page, maybe you can give several hints to make things work?