Add PBR Map Generator Models

Add safetensor versions of joeyballentine's PBR Map Generation models.

franken_map_generator.safetensors

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:822b17707d7ac1af35e85f8f19ac98f11335ef5a09f9a40d2e06aa40d5d8b9e8
+size 20047924

normal_map_generator.safetensors

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c482d2bb15616851cc2afdb628f69d6593556bb03cb500949d7bad2020197840
+size 20047924