Fixes and improvements driven by ls4gan

Release 0.13.0 catch up on various improvements

Sigproc improvements (speadups from Haiwang and tuning knobs from Wen…

…qiang)

Support for PDSP low mem lazy loading.

Initial support for protodune NF+SP+SIM and new, experimental imaging…

… components.

Remove broken tests for unreleased feature.

MicroBooNE overlay support and ProtoDUNE noise filtering.

Memory leak fixes and implement some memory reduction.

Updates to sigproc in support of protodune.

Add tag transfer in channel selector to support reduced memory graphs.