Add support for batch value processing in LogImport.pm
Add support for batch value processing in LogImport.pm

This makes it more feasible to process dozens of files in parallel
which might use different timestepping.

wuliming/pcp,mbaldessari/pcp,tjanez/pcp,adfernandes/pcp,andyvand/cygpcpfans,adfernandes/pcp,tjanez/pcp,adfernandes/pcp,adfernandes/pcp,andyvand/cygpcpfans,edwardt/pcp,mbaldessari/pcp,prasincs/pcp,mbaldessari/pcp,tjanez/pcp,wuliming/pcp,prasincs/pcp,edwardt/pcp,aeg-aeg/pcpfans,adfernandes/pcp,aeg-aeg/pcpfans,tjanez/pcp,tjanez/pcp,prasincs/pcp,andyvand/cygpcpfans,prasincs/pcp,aeg-aeg/pcpfans,mbaldessari/pcp,edwardt/pcp,adfernandes/pcp,wuliming/pcp,wuliming/pcp,prasincs/pcp,adfernandes/pcp,aeg-aeg/pcpfans,edwardt/pcp,edwardt/pcp,andyvand/cygpcpfans,andyvand/cygpcpfans,andyvand/cygpcpfans,edwardt/pcp,wuliming/pcp,mbaldessari/pcp,wuliming/pcp,aeg-aeg/pcpfans,tjanez/pcp,prasincs/pcp,wuliming/pcp,mbaldessari/pcp,prasincs/pcp,adfernandes/pcp,wuliming/pcp,edwardt/pcp,prasincs/pcp,edwardt/pcp,andyvand/cygpcpfans,aeg-aeg/pcpfans,aeg-aeg/pcpfans,tjanez/pcp,aeg-aeg/pcpfans,andyvand/cygpcpfans,tjanez/pcp