Add CLI utilities for working with raw trend files

See merge request cds/advligorts!203

Update the ligo_shmem python module documentation.

Closes #349

See merge request cds/advligorts!294

Adjust the CA SDF to not constrain PVs to its prefix.

Closes #369

See merge request cds/advligorts!316

fe_generator: Add DOLPHIN_GEN and USE_DOLPHIN_CONTROL_PORT environment flags

See merge request cds/advligorts!317

 * Remove the prefix from the parsing of the req file.
 * Add a target to build the sequencer to the cmake, for testing purposes.

Closes #369

DOLPHIN_GEN sets dolphin generation code: ix, px.  USE_DOLPHIN_CONTROL_PORT when false
ignores the dolphin control port scripts for turning on and off dolphin ports at bootup.

rts start scripts now honor RTS_ENV environment variable.

Closes #367

See merge request cds/advligorts!315

RTS_ENV environment variable can be used to override the default path to /etc/advligorts/env
This change facilitates automatic testing of model build,install,and running

updating gpstime to allow pausing/resuming/stepping in time

See merge request cds/advligorts!313

 * Expose an admin interface to manipulate the gpstime pause state for manual testing.

 * Clarify the code and the roles of fields by using a specific duration type.

Update gpstime.c to make the main path for getting time w/o a timing card lock free until a pause is requested.

 * Check for admin interface commands periodically while waiting for the clock to change.
   * If the clock is paused this could block the admin interface response.

 * An aid for debugging user space programs that use gpstime.
 * Adds ioctls to the gpstime drive to pause/resume/step
 * Only works when system time is being used.
 * Adds entries to sysfs to show state of the clock and to query/set the step size.
 * Adds a utility program gps_module_utils which can pause/resume/step the time.

Volatile dma data

See merge request cds/advligorts!312

Noise.pm code generation cleanup

See merge request cds/advligorts!310

RCG: Fix ADC read loop limit

See merge request cds/advligorts!309

Fast ADCs were reading only one point per cycle.  The ADC read loop limit was being reset to 1 for slow ADCs but not set back 1 for fast ADCs.

the 4-value dropouts seen on h1ioplsc0 fast adc channels ought to be fixed by this change.

Adding support for a custom target dir while building, fixing a few issues...

See merge request cds/advligorts!308

Adding support for a custom target dir while building, fixing a few issues where the SITE.ipc folder/file was not created for a fresh build

RCG: Fix $bdroot variable replacement for long library references.

See merge request cds/advligorts!307

Previous code assumed link was top-level, dropping any part of the reference after the second slash.
This led to a link to the wrong subsystem.

Improved error message when linked subsystem is not found in library.

Note that the search code doesn't verify the full path of the link.  If there were another part of the same name
but with different parent subsystems, the RCG would happily link to that instead.  This problem is *not* fixed by this patch.

Fixing undefined refrence on debian 11, adding better error messages,...

See merge request cds/advligorts!305

Removing the copy and lib from the path, so you can build the x1tst example without using the run script

Fixing undefined refrence on debian 11, adding better error messages, replacing uses in two file of RCG_DIR with the newer env var RCG_SRC, adding gitignore in test/ directory so you can run the 'run' script without generating files tracked by git

RCG: Add automated tests for building, installing and running models.

See merge request cds/advligorts!293

Some code cleanup, and fixing userspace builds after the last pull request.

See merge request cds/advligorts!304

Adding volatile for memory mapped IO, adding function for kernel space...

See merge request cds/advligorts!300