Making changes to fix deb 10 CI build

See merge request !435

Adding cmake and git for new build rcg deps

See merge request cds/advligorts!363

Expand packaging for dkms gpstime to include newly added files

See merge request cds/advligorts!360

Some header files were added to gpstime during the build reorg.
This change installs those headers as part of the dkms package.

packaging: remove python3-rtcds from created packages (buster)

See merge request cds/advligorts!356

contents now moved to cds/rtcds source

Add dolphin px modules as alternative to ix in package dependencies.

See merge request cds/advligorts!311

Replace rtcds (bash) with rtcds (python)

See merge request cds/advligorts!314

rtcds no longer included with advligorts-rcg package.
package build creates 'rcg-version' file in src directory
python3-rtcds-cmd added as dependency for advligorts-fe and advligorst-rcg

Change dependencies for advligorts-transport-dix to depend on ligo-dolphin-ix-dkms or ligo-dolphin-px-dkms,
but prefer the ix packages.

 * debian/advligorts-cpu-isolator.dkms -> debian/advligorts-cpu-isolator-dkms.dkms

 * ligo_rt -> rts-cpu-isolator
 * Renamed the dkms package

 * fixes to standalone_edcu
 * rename ligo_rt module to rts-cpu-isolator

Close issue #333 rename ligo_rt to rts-cpu-isolator

Closes #333

See merge request cds/advligorts!288

 * Include the ligo_rt in the install properly
 * Fix some naming issues dealing with hypens and dashes so that dkms and the packagins systme agree on names

Note: ligo_rt will be renamed.

Fix for 332, standalone_edcu does not reflect all of its created values into EPICS.

Closes #332

See merge request cds/advligorts!287

Six channels are created by the EDCU.  Only three were sent to both EPICS and the data stream.
 * Update the standalone_edcu to export the UPTIME, GPS, and DATA_RATE_KB_PER_S values in EPICS as well.
 * Minor formatting changes as per clang-format run.

Closes #332

 * Bringing in updates so that packaging can be updated.
  * Starting to restructure rtcds
  * new kernel module to do the LIGO real time hooks
  * updates for Debian 11 support

Updates to gpstime/mbuf code to build on 5.10.x kernels.

See merge request cds/advligorts!283

Including a Linux kernel module that encapsulates the LIGO RT patch.

See merge request cds/advligorts!285

Python org

See merge request cds/advligorts!286

The ligo_rt module has the functionality of the real time patch, without the
requirement to rebuild the kernel.

remove old unused stuff

See merge request cds/advligorts!284

 * Use the proper version of ioremap for each kernel version.
 * Use a 64bit time call in newer kernels.
 * Only use unlocked ioctls as the interface in the mbuf/gpstime code.

Correct TIME 0 values for non-standard IOPs

See merge request cds/advligorts!282