Rapidtide

* (rapidtide) Adjusted some default parameters to reflect the current best picks.
* (rapidtide) Fixed the ``--denoising`` option (it didn't actually do anything!)
* (package) Partially implemented a major reorganization of all the programs in the package to make them workflows with standard interfaces.
* (docs) Started the process of standardizing the program descriptions and properly using autodoc.

* (rapidtide) Output some .json sidecars that I had neglected.
* (glmsim) New program to help develop instructional tools re: how rapidtide works. This is a WIP.
* (docs) Major revisions to the rapidtide usage instructions.
* (package) Accepted several dependabot changes.

* (rapidtide) Fixed the logic for saving lagregressors - they only exist if you do GLM or CVR analysis, so if you set nolimitoutput, check for existence first (thanks to Laura Murray for finding this bug).
* (rapidtide) Changed the name of the file containing the voxel specific EVs that are regressed out by the GLM from "lagregressors_bold" to "lfofilterEVs_bold" (thanks to Tianye Zhai for flagging this).
* (localflow) Added a new program to test a hunch.
* (fit) Gracefully handle singular matrices in mlregress.
* (reference) Corrected the abbreviated name for the MLSR region in the JHU level 1 atlas xml file (oops!).
* (docs) Added description of the lfofilterEVs_bold and shiftedtcs_bold output files to the usage section.

* (rapidtide) Added a lot more internal debugging resources, and fixed a bug where zero range time data that was included due to explicit masks would put NaN's in the maps.
* (rapidtide) Implemented multiprocessing to speed up motion regression.

* (cloud) Now using an s3 working folder.

* (Docker) Set to basecontainer_plus:latest-release to simplify builds.