add deprecation notices to pipeline functionality to be replaced, add dagparts.py back in for backwards compability

dags/layers/inspiral.py: group up calc_likelihood jobs more finely, fix issues when file transfer disabled

gstlal_inspiral: avoid issue when calculating expected SNR + frame caching, lower sampling rate of expected SNR calculation

gstlal_injsplitter: create new xml document for split injections rather than reusing loaded injection doc

gstlal_inspiral_calc_likelihood: allow a copy rather than in-place likelihood assignment with --copy

dags/layers/inspiral.py: put data products into /filter and /rank namespaces to allow reranking workflows

gstlal_inspiral_marginalize_likelihoods_online: replace file naming for file used for resetting zerolag counts by one generated by mktemp