* Put in to make linking work with Epics 7

 * This will embed the rust dependency list in the rust binaries as an audit trail.

 * This is initially to install local_dc_rs

 * use braced initialization for atomics.

 * std::atomic must used braced initialization not an equals on older gcc.

 * Adding the src/lib.rs file that was not committed.

* The EdcuClock object didn't properly initialize the sipc_shm_ptr_ field.  Set it to nullptr.

Porting simple_pv to rust.

See merge request !601

 * Removed a fixme with the string pv, initialize the internal state of the PV properly.
 * Name change, changed the read_write field of the *PV structs to be access_mode to improve clarity.

 * Alter the string interface to allow read/write functions to be specified as strings are not atomic.
   * This allows us to "safely" wrap the interface in rust
 * clang-format and rust-fmt the code
 * update comments on the code

 * Added AtomicFloat32 and AtomicFloat64 types to atomically load/store f32/f64 in rust
 * Reworked simple_pv code to use templated code for numerics, dropping specific double support
 * Updated ctest tests to build and pass

 * Added a simple_pv_rs_sys to link with the C interface
 * Added simple_pv_rs for a higher level interface
 * Supporting uint16 and uint32
 * Extending the simple_epics code to use atomic reads/writes for integer values.

Introduce a new local_dc (local_dc_rs) that can auto (re)configure itself depending what models are running.

See merge request !598

 * Reformatted code with clang-format and cargo fmt
 * Added a define to daq_core.h to list the size of the _daq mbuf (rmipcstr) buffer
 * Updated mbuf_probe to let the list_dcus command be more forgiving on buffer sizes
 * Updated local_dc_rs to use the constants for buffer sizes
 * Removed an empty rust crate ligo_crc_rs, as it is not populated yet

 * Handle empty CMAKE_BUILD_TYPE as debug
 * Update local_dc_rs to work with larger buffer sizes, using the constants to define the min, max, and default.
 * Updating a test to run at 140 MB buffer

 * Removed duplicate copy of the rmIpcStr and daq_multi_cycle_header_t from local_dc_rs/src/structs.rs
 * Added getter/setter methods in the advligorts_rs bindings over the structures in question
 * Updated code to use the advligorts_rs copies

 Also:
 * Set the cargo resolver to "2" on the rust workspace as that is the appropriate setting for rust edition 2021.

 * Added the ability to change the period that local_dc_rs uses to look for new models
   * shortening allows for faster tests
 * Added a log method to the integration python module
 * Fixed some logic errors in the test

 * extended mbuf_probe to add a list_dcus command to list the dcuid's in a rmipcstr or daq_multi_cycle buffer
 * added an option to fe_simulated_streams to have it close down shared memory segments when a model is stopped
   * and start them when the model is restarted
 * updates to local_dc_rs to make the auto-detection work
 * working on an automated test for the autoconfiguration

 * Typing the ini_parsing module's unit tests into the ctest world

 * Enable ctests
 * Use custom commands/targets instead of ExternalProject

 * The back ground thread is optional
 * When automatic detection is used the
 background thread will periodically poll
 for new models to monitor and collect
 data from.
 * When models go stale they should be
 removed from the active list.
 * Only works with mbufs for now.

 * Added more unit tests to find issues
 * Added a missing shmem_wrap call to cds_shmem
 * Added a test_local_dc_rs integration test
 * Fixed issues with local_dc_rs so that it passes the integration test

 * Fix a data alignment issue

 * Copy input rmIpcStr to internal structure so that it is consistent
 * Read _daq buffers
 * Use proper cycle offsets
 * Removed a debug output in cds_shmem_rs

 * Added rust to the cmake files
   * Needs work
 * Added rust wrappers to a number of libraries to export needed features
   * crc, advligorts headers, mbuf, gpstime
 * Implemented a local_dc_rs
   * needs more testing

Updating the daqd and transports to work with larger buffers.

See merge request !600

 * Updates to tests so that they all pass
 * Added a define for a default buffer size
   * Keeping this at 100MB so that it can be added to existing systems

Keep master updated with 5.1 changes.

See merge request !599

 * Updated constants to use a maximum of 140MB for a daq_multi_cycle_data_t type
 * Updated min/max daq shared mem buffer sizes
 * Use the min/max constants in applications
 * Updated local_dc, cps_xmit/recv, fe_simulated_streams
 * Updating test code, not complete yet.