bump crengine: support for inline margin/border/padding

Includes:
- lvtext: tweak object flags implementation
- lvtext: rename LTEXT_WORD_IS_OBJECT to LTEXT_WORD_IS_IMAGE
- lvtext: add LTEXT_OBJECT_IS_EMBEDDED_BLOCK
- Text: support for inline margin/border/padding
- PageMap: allow building synthetic pages numbers

cre: add synthetic page map functions (not yet used)

base

@@ -1 +1 @@
-Subproject commit 095b0281ccfd77b38d6291827bf32a1d5237531e
+Subproject commit fae267c3b98e4ba5f36eba40b9f5e21a12125ccf

frontend/document/credocument.lua

@@ -1287,6 +1287,14 @@ function CreDocument:buildAlternativeToc()
     self._document:buildAlternativeToc()
 end
 
+function CreDocument:buildSyntheticPageMapIfNoneDocumentProvided(chars_per_synthetic_page)
+    self._document:buildSyntheticPageMapIfNoneDocumentProvided(chars_per_synthetic_page or 1024)
+end
+
+function CreDocument:isPageMapSynthetic()
+    return self._document:isPageMapSynthetic()
+end
+
 function CreDocument:hasPageMap()
     return self._document:hasPageMap()
 end