MB-15348 Use reader-writer spinlock for the buffer cache file list on Windows
MB-15348 Use reader-writer spinlock for the buffer cache file list on Windows

Change-Id: If1096b551d7048dd12dca6a9aaabea9e39b8ad3e

joliss/forestdb,zhaog/forestdb,yyangpan/forestdb,zhaog/forestdb,sushmaad/forestdb,wurikiji/forestdb,joliss/forestdb,yyangpan/forestdb,sushmaad/forestdb,couchbase/forestdb,hisundar/forestdb,jinxuan/forestdb,couchbase/forestdb,wurikiji/forestdb,hisundar/forestdb,jinxuan/forestdb