Updated example STAC items with valid bbox. (#520)

* Added examples of stage-in and stage-out cwl.

* Changed DOWNLOADING_ROLES to data.

* Removed sample data.

* Removed sample output.

* Updated stage-in cwl example to use v9.0.0.

* Updated stage-out cwl example to use v9.0.0.

* Updated stage-in, stage-out images to v9.1.0.

* Added stage-in cwl example with STAC feature collection as JSON string.

* Renamed directory as sample data is a copy in public github not at daac.

* Added networkAccess and updated to DS image v9.4.0.

* Updated example STAC items with valid bbox.

Author: ngachung

cwl/stage-out-stac-catalog/outputs/output_1.nc.stac.json

@@ -32,10 +32,10 @@
     }
   },
   "bbox": [
-    0,
-    0,
-    0,
-    0
+    -180,
+    -90,
+    180,
+    90
   ],
   "stac_extensions": [
     "https://stac-extensions.github.io/file/v2.1.0/schema.json"

cwl/stage-out-stac-catalog/outputs/output_2.nc.stac.json

@@ -32,10 +32,10 @@
     }
   },
   "bbox": [
-    0,
-    0,
-    0,
-    0
+    -180,
+    -90,
+    180,
+    90
   ],
   "stac_extensions": [
     "https://stac-extensions.github.io/file/v2.1.0/schema.json"