Support for assumption that creators of prim assets governed by creator.

Assume if someone has put an asset on a prim they have license or are trusted to manage it by actual creator (who might be same creator).

OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs

@@ -122,6 +122,9 @@ public class ArchiveReadRequest
         int m_scannedItems = 0;
         int m_debugOars = 0;
 
+        // false if we assume prim creator is creator of assets on prims, or has license to use, or will filter.
+        bool m_filterPrimAssets = false;    // false==include prim assets like textures
+
         /// <summary>
         /// Used to cache lookups for valid uuids.
         /// </summary>
@@ -631,6 +634,8 @@ private Primitive.TextureEntryFace FilterFaceTexture(SceneObjectPart part, Primi
 
         private bool FilterPrimTexturesByCreator(SceneObjectPart part, UUID ownerID)
         {
+            if (!m_filterPrimAssets) return false;
+
             bool filtered = false;
 
             int basicSculptType = part.Shape.SculptType & (byte)0x3F;
@@ -688,6 +693,8 @@ private bool FilterPrimTexturesByCreator(SceneObjectPart part, UUID ownerID)
 
         private bool FilterOtherPrimAssetsByCreator(SceneObjectPart part, UUID ownerID)
         {
+            if (!m_filterPrimAssets) return false;
+
             bool filtered = false;
             if (part.Sound != UUID.Zero)
             {