Add CLI entry point with --test flag for building test landscape using LandscapeDirector

src/pg_rad/main.py

@@ -0,0 +1,33 @@
+import argparse
+
+from pg_rad.logger import setup_logger
+from pg_rad.landscape import LandscapeDirector
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        prog="pg-rad",
+        description="Primary Gamma RADiation landscape tool"
+    )
+
+    parser.add_argument(
+        "--test",
+        action="store_true",
+        help="Load and run the test landscape"
+    )
+    parser.add_argument(
+        "--loglevel",
+        default="INFO",
+        choices=["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"],
+    )
+
+    args = parser.parse_args()
+    setup_logger(args.loglevel)
+
+    if args.test:
+        landscape = LandscapeDirector().build_test_landscape()
+        print(landscape.name)
+
+
+if __name__ == "__main__":
+    main()