update sample params and stream files to latest format
update stream parsers to read dependency time too
assign all read operations a dependency time of zero inside the parser (no longer modified in workload class)
minor clean up and removal of unnecessary time unit conversions
add timeStamp (never moved or compressed) in addition to scheduledStartTime (moved and compressed) and change dependencyTime (never moved or compressed) <-- easy process of maintaining GCT
modify Client to initialize GCT to lowest timeStamp in workload <-- computed during "limit" computation, but could be done in better way
update all tests and most classes (Stats Calc and Workload Validator need more work) to work with new design
Merge branch 'master' into short_reads

Conflicts:
	src/test/java/com/ldbc/driver/workloads/ldbc/snb/interactive/EventStreamReaderPerformanceTest.java