buffer_pool_extension_pages_written wmi class in namespaces

buffer_pool_extension_pages_written in WMI namespaces

Class	namespace	Childs	Props	Meths	Ins	Insd	Abs	Sing
buffer_pool_extension_pages_written	0	10	0	-	-	-	-

Class	namespace	Childs	Meths	Ins	Insd	Abs
errorlog_written	0	6	-	-	-	-
file_written	0	14	-	-	-	-
file_written_to_replica	0	14	-	-	-	-
W3CGIFResponseWritten	0	3	-	-	-	-
W3CGIFResponseWritten	0	3	-	-	-	-
XeSqlPkg_buffer_pool_extension_pages_written	1	1	-	-	-	-
XeSqlPkg_errorlog_written	1	1	-	-	-	-
XeSqlPkg_file_written	1	1	-	-	-	-
XeSqlPkg_file_written_to_replica	1	1	-	-	-	-