TECA TECA_data

Test files for teca_blocking_event_tracker and teca_blocking_event_relabel

Updated incorrect test data

Use binary mask instead of id for blocking event DetectBlob test

Added test data for blocking event detection.

Added/updated test data for groups/ensembles

add test data for detect_nodes

Added test files for variables in groups

revert r158. note: this will be needed for the threaded tc detector

re-baseline event filter tests

re-baseline the bard app test after turning off periodic bc in lon

that data is a subset and not-periodic in lon