Added Test to check TableAutoFormat Style after Save/Load

Change-Id: I466d5c5536d4c4310356f38569f7a91e0f36ba1d
Reviewed-on: https://gerrit.libreoffice.org/40104Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Stahl <mstahl@redhat.com>

sw/inc/tblafmt.hxx

@@ -111,6 +111,7 @@ class SwBoxAutoFormat
     LanguageType        m_eSysLanguage, m_eNumFormatLanguage;
 
     css::uno::WeakReference<css::uno::XInterface> m_wXObject;
+    friend class SwDocTest;
 
 public:
     SwBoxAutoFormat();
@@ -236,6 +237,7 @@ properties are stored per-table, and are lossless.
 */
 class SW_DLLPUBLIC SwTableAutoFormat
 {
+    friend class SwDocTest;
     friend void FinitCore();       // To destroy default pointer.
     static SwBoxAutoFormat* pDfltBoxAutoFormat;