Update PSM1 file to properly load assemblies and let PowerShell handle cmdlet export

src/PSOPNSenseAPI/PSOPNSenseAPI.psm1

@@ -0,0 +1,36 @@
+# Load assemblies from the lib folder using System.Reflection.Assembly::LoadBytes
+# This avoids file lock issues when the module is loaded
+
+$libPath = Join-Path $PSScriptRoot -ChildPath "lib"
+
+$DLLFileList = Get-ChildItem -Path $libPath -Filter "*.dll"
+
+$DLLFileListCount = ($DLLFileList | Measure-Object).Count
+
+$DLLFileListCounter = 1
+
+For ($DLLFileListIndex = 0; $DLLFileListIndex -lt $DLLFileListCount; $DLLFileListIndex++)
+  {
+      Try
+        {
+            $DLLFile = $DLLFileList[$DLLFileListIndex]
+
+            Write-Verbose "Attempting to load DLL assembly $($DLLFileListCounter) of $($DLLFileListCount). Please Wait..."
+
+            Write-Verbose "Path: $($DLLFile)"
+
+            $DLLFileBytes = [System.IO.File]::ReadAllBytes($DLLFile.FullName)
+
+            $Null = [System.Reflection.Assembly]::Load($DLLFileBytes)
+
+            Write-Verbose "Successfully loaded DLL assembly $($DLLFileListCounter) of $($DLLFileListCount)"
+        }
+      Catch
+        {
+            Write-Warning "Failed to load DLL assembly $($DLLFileListCounter) of $($DLLFileListCount): $($_.Exception.Message)"
+        }
+      Finally
+        {
+            $DLLFileListCounter++
+        }
+}