GB300: set aif:core:simreadyVersion to 0.2.0; refresh package hashes

Bumps `aif:core:simreadyVersion` (SimReady AIF specification version) from 0.1.0 to 0.2.0 in `GB300/simready_usd/layers/GB300_Properties.usda`, matching the AIF-Entity 0.2.0 profile already reported in `.metadata/GB300_validation.json`.

Package metadata re-hashed per PKG.HASH.001 (same algorithm as the simready-foundation packaging sample):
- BOM entry for GB300_Properties.usda
- content_hash 6247174c… → f1f98154…
- package_hash 0b5d6f9d… → 9faaefdc…

All other files are unchanged; package_id left as-is. The validator was not re-run.

GB300/.metadata/com.nvidia.simready.packaging.bom.json

@@ -45,8 +45,8 @@
       "relative_path": "simready_usd/layers/GB300_Properties.usda",
       "size": 11272,
       "hash": {
-        "sha256-flat-1mb": "6902dabc4ac61ed0bf1c62ec247729f8102858f007c2e4c63fb8a22e1af81566",
-        "sha256": "34be9fd09fb1088a257d3022e05673db0694f12397222112f6de59cac69de244"
+        "sha256-flat-1mb": "69df69cea5d178a023cdd5627870625bd1c4ebec5b7e23805d523fef51dc101e",
+        "sha256": "520dfecb0e2545b95e95dbda544e4d3f0a72f158c210de19f8e3d6422c46eb3a"
       }
     },
     {

GB300/com.nvidia.simready.packaging.json

@@ -12,7 +12,7 @@
     {
       "name": "com.nvidia.simready.packaging.bom.json",
       "hash": {
-        "sha256": "174aeee5e44faccc42fb8c00c5bccca7d465415a6ffb456bbf48f5b95650b9b3"
+        "sha256": "f3ce61447e4ffd8533fe7e021c5a98849dd884ee8aa9d28d8b0d3087159eee94"
       }
     },
     {
@@ -23,9 +23,9 @@
     }
   ],
   "content_hash": {
-    "sha256": "6247174c84fd1cea40a28107a917ba4582c60079b4a7951aba72f39e785e214e"
+    "sha256": "f1f98154c654ec1517bf22c9650171891a1dac6d5cd99e405e30c35ab3cdee41"
   },
   "package_hash": {
-    "sha256": "0b5d6f9d0e71ae1747edebd6327d2b63c3265fc707349ce77ab8311ddab8d937"
+    "sha256": "9faaefdced9b4535d119ce2def0914bc726c3cc127e613d17f1c1be719b73001"
   }
 }

GB300/simready_usd/layers/GB300_Properties.usda

@@ -145,7 +145,7 @@ over "GB300"
         }
         doc = "Scene Optimizer version [AIF-MANAGED]"
     )
-    custom string aif:core:simreadyVersion = "0.1.0" (
+    custom string aif:core:simreadyVersion = "0.2.0" (
         customData = {
             dictionary omni = {
                 dictionary kit = {