New state plugin callback for pagination.

* You need to change all statedata plugin callback for the new pagination feature
  * If you dont use pagination you can ignore the values of the new parameters
  * See [User manual pagination](https://clixon-docs.readthedocs.io/en/latest/misc.html#pagination)
  * The updated callback signature is as follows:
  ```
  int statedata(clicon_handle     h,
                cvec             *nsc,
	        char             *xpath,
	        pagination_mode_t pagmode,   // NEW
	        uint32_t          offset,    // NEW
	        uint32_t          limit,     // NEW
	        uint32_t         *remaining, // NEW
	        cxobj            *xstate)
  ```

test/test_pagination_config.sh

@@ -22,8 +22,7 @@ fexample=$dir/example-social.yang
 
 # Number of audit-log entries 
 # Note mem.sh sets it
-#: ${perfnr:=20000}
-: ${perfnr:=200}
+: ${perfnr:=20000}
 
 cat <<EOF > $cfg
 <clixon-config xmlns="http://clicon.org/config">