[VERSION] Add --version option returning tool's version

Signed-off-by: Nicola Sparnacci <nicola.sparnacci@seco.com>

src/seco_setup.py

@@ -9,6 +9,7 @@ import seco_setup_utils as ssu
 import seco_setup_environment as sse
 import seco_setup_conf as ssc
 import seco_setup_post_scripts as ssp
+from version import __version__
 
 # -------------------------------- LOGGER ----------------------------------- #
 logger = ssu.setup_logging(os.path.basename(os.path.abspath(__file__)), logging.DEBUG)
@@ -26,6 +27,7 @@ parser.add_argument("-p", "--get_config_path", action='store_true', help="Return
 parser.add_argument('-a', "--add_custom_layer", type=str, help="Add an extra layer to default setting.")
 parser.add_argument('-v', '--verbose', action='store_true', help="Enable verbose output")
 parser.add_argument('--post-scripts', action='store_true', help="Run post-scripts for HW and flavours")
+parser.add_argument('--version', action='store_true', help="Returns configurator core version")
 
 # Add options for environment handling
 parser.add_argument("-e", "--environment", action='store_true', help="Handle the creation of the build environment.")
@@ -97,6 +99,12 @@ def main():
         #####################################################################
         if args.post_scripts:
             ssp.post_scripts_manager(args.build_dir)
+
+        #####################################################################
+        #                           --version                               #
+        #####################################################################
+        if args.version:
+            ssu.eprint(f"Configurator core version: {__version__}.\n")
         
         return 0
     except: