Merge branch 'delta_elektronica_power_supply' into 'master'
add controller for delta elektronica psc eth power supply
See merge request !5357 (merged)
(cherry picked from commit 96124a61)
25692093 added DeltaElektronicaPscEth power supply controller 163ee616 add documentation on configuration of DeltaElektronica power supply 75f1ca8a changelog: add entry for new controller