fix(logScale): (1) Thoroughly resolve a long-standing issue of non-positive data on LogScale - exclude non-positive series data items when calculate dataExtent on LogScale. (2) Include `Infinite` into `connectNulls` handling on line series; the `Infinite` value may be generated by `log(0)` and previously the corresponding effect in unpredictable on line series (sometimes display as connected but sometimes not).