log software version when init

src/mpsd_software_manager/mpsd_software.py

@@ -1232,9 +1232,11 @@ def initialise_environment(root_dir: Path) -> None:
         # create the log file and fill it with the headers
         record_script_execution_summary(root_dir=root_dir)
         # record the msg in the log file
+        init_log_msg = f"Initialising MPSD software instance at {root_dir}.\n"
+        init_log_msg += "MPSD Software manager version: {__version__}\n"
         write_to_cmd_log(
             root_dir=root_dir,
-            msg=f"Initialising MPSD software instance at {root_dir}.\n",
+            msg=init_log_msg,
         )