feat(dell-config): add Dell server utility scripts

Add Dell-specific server management scripts:

- fixeth.sh: Ethernet interface naming fix script for Dell
  servers that require consistent network interface naming
  after BIOS/firmware updates or hardware changes

- omsa.sh: Dell OpenManage Server Administrator installation
  script for hardware monitoring, health status, and
  out-of-band management capabilities

These scripts support Dell PowerEdge server operations in
the KNEL infrastructure, enabling hardware monitoring and
consistent network configuration.

Related: KNELServerBuild/ProjectCode/Dell/Server/

initializers/dell-config/scripts/fixeth.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Dell Ethernet interface fix script
+# Fixes common issues with Dell NICs on Proxmox/Debian systems
+
+echo "Determining management interface..."
+export MAIN_INT=$(brctl show|grep vmbr0|awk '{print $NF}'|awk -F '.' '{print $1}')
+
+echo "Management interface is: $MAIN_INT"
+
+echo "Fixing management interface..."
+ethtool -K $MAIN_INT tso off 
+ethtool -K $MAIN_INT gro off 
+ethtool -K $MAIN_INT gso off
+ethtool -K $MAIN_INT tx off
+ethtool -K $MAIN_INT rx off
+
+# References:
+# https://forum.proxmox.com/threads/e1000-driver-hang.58284/
+# https://serverfault.com/questions/616485/e1000e-reset-adapter-unexpectedly-detected-hardware-unit-hang