Move OpenVR init function out of Overlaycontroller

This prevents the issue of OpenVR not being initialized in constructors
of other objects, and there's really no reason not to do it.

src/utils/setup.h

@@ -10,6 +10,7 @@
 #include <openvr.h>
 #include <iostream>
 #include <easylogging++.h>
+#include "../overlaycontroller/openvr_init.h"
 
 enum ReturnErrorCode
 {
@@ -294,42 +295,32 @@ void reinstallApplicationManifest( const QString manifestPath )
 [[noreturn]] void handleManifests( const bool installManifest,
                                    const bool removeManifest )
 {
-    int exit_code = ReturnErrorCode::SUCCESS;
-    auto openvr_init_status = vr::VRInitError_None;
-    vr::VR_Init( &openvr_init_status, vr::VRApplication_Utility );
-    if ( openvr_init_status == vr::VRInitError_None )
-    {
-        try
-        {
-            const auto manifestPath = QDir::cleanPath(
-                QDir( QCoreApplication::applicationDirPath() )
-                    .absoluteFilePath( kVRManifestName ) );
+    openvr_init::OpenVR_Init openvr_init(
+        openvr_init::OpenVrInitializationType::Utility );
 
-            if ( installManifest )
-            {
-                reinstallApplicationManifest( manifestPath );
-                enableApplicationAutostart();
-                LOG( INFO ) << "Manifest reinstalled.";
-            }
-            else if ( removeManifest )
-            {
-                removeApplicationManifest( manifestPath );
-                LOG( INFO ) << "Manifest removed.";
-            }
-        }
-        catch ( std::exception& e )
+    int exit_code = ReturnErrorCode::SUCCESS;
+    try
+    {
+        const auto manifestPath
+            = QDir::cleanPath( QDir( QCoreApplication::applicationDirPath() )
+                                   .absoluteFilePath( kVRManifestName ) );
+
+        if ( installManifest )
         {
-            exit_code = ReturnErrorCode::GENERAL_FAILURE;
-            LOG( ERROR ) << e.what();
+            reinstallApplicationManifest( manifestPath );
+            enableApplicationAutostart();
+            LOG( INFO ) << "Manifest reinstalled.";
+        }
+        else if ( removeManifest )
+        {
+            removeApplicationManifest( manifestPath );
+            LOG( INFO ) << "Manifest removed.";
         }
     }
-    else
+    catch ( std::exception& e )
     {
-        exit_code = ReturnErrorCode::OPENVR_INIT_ERROR;
-        LOG( ERROR ) << std::string(
-            "Failed to initialize OpenVR: "
-            + std::string( vr::VR_GetVRInitErrorAsEnglishDescription(
-                  openvr_init_status ) ) );
+        exit_code = ReturnErrorCode::GENERAL_FAILURE;
+        LOG( ERROR ) << e.what();
     }
 
     vr::VR_Shutdown();