Move run section to plugin

Remove all references to section run schema in nomad.datanodel.metainfo.simulation . These are moved to achema plugin. As an effect, all normalizers referencing the run section are also made plug ins together with their tests. In addition, the results schema are now defined independently and not copied from run.

dependencies/normalizers/simulation/band_structure

+Subproject commit 9f52ea64d13a0fbc38d40608b34c6b5870fac6b0