update to dll loading

Added fetch dll path through registry.

Added custom error class VBPathError in case dll path was not found

Added function Setup_DLL to base.ps1

Wrapper setup stops if setup_dll returns false (no login, no class setup)

lib/inst.ps1

@@ -0,0 +1,15 @@
+Function Get_VBPath {
+    @(
+        'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall',
+        'Registry::HKEY_LOCAL_MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall'
+    ) | ForEach-Object {
+        if(Test-Path -Path $_) {
+            (Get-ChildItem -Path $_\*) | ForEach-Object {
+                if($_.Name.Contains("Voicemeeter")) {
+                    $reg = -join("Registry::", $_.Name)
+                    return $(Get-ItemPropertyValue -Path $reg -Name UninstallString | Split-Path -Parent)
+                }
+            }
+        }
+    }
+}