updated CLI to support new features

slider_app.py

@@ -94,13 +94,30 @@ def add_chart_cli(subparsers):
         type=float,
     )
     parser.add_argument(
-        "--out",
+        "--outdir",
         metavar="<dir>",
         help="Output directory",
         default="./chart-to-slide.reg",
         type=str,
         required=False,
     )
+    parser.add_argument(
+        "--boundary_key",
+        metavar="<key>",
+        help="Name of boundary contour in chart",
+        default=None,
+        type=str,
+        required=False,
+    )
+    parser.add_argument(
+        "--justify",
+        metavar="<left-right>",
+        help="Justify chart bounding-box to the left/right of the image bounding box.  Useful when only one hemisphere is charted.",
+        default=None,
+        choices=['left', 'right', None],
+        type=str,
+        required=False,
+    )
     parser.add_argument(
         "--config",
         metavar="<config.yaml>",