Add DSC configurations for user interface, Windows features, and services; implement app installation and removal scripts

- Created `DSC-UserInterfaceConfiguration.ps1` to manage user interface settings via registry changes.
- Developed `DSC-WindowsFeatures.ps1` to install OpenSSH Client and enable NFS Client features.
- Implemented `DSC-WindowsServices.ps1` to ensure Terminal Services are running and set to automatic startup.
- Added `PS-InstallApps.ps1` to manage app installations and remove the msstore source if it exists.
- Created `PS-RemoveApps.ps1` to remove unwanted apps, provisioned packages, and handle Office applications via winget.

DSC-WindowsServices.ps1

@@ -0,0 +1,26 @@
+Configuration WindowsServices {
+    Import-DscResource -ModuleName PSDesiredStateConfiguration
+    
+    Node localhost {
+        
+        # === REMOTE DESKTOP SERVICES ===
+        
+        # Enable Terminal Services (Remote Desktop)
+        Service TerminalServices {
+            Name = "TermService"
+            State = "Running"
+            StartupType = "Automatic"
+        }
+        
+        # === ADDITIONAL SERVICES CONFIGURATION ===
+        
+        # Note: Other services from the registry.csv could be added here
+        # if they were service-related rather than registry-based
+    }
+}
+
+# Generate the MOF file  
+WindowsServices -OutputPath "\temp\DSC\WindowsServices"
+
+# Apply the configuration
+Start-DscConfiguration -Path "\temp\DSC\WindowsServices" -Wait -Verbose -Force