ENH: Bulk-add 50 ingest-batch fixture content-links (real blobs)

Adds 50 content-link blobs under CID/ (8,446,266 bytes total) for
fixtures consumed by ITK ingestion PRs in the #6266..#6276 range.
Blobs are real content (not zero-byte markers) so the GitHub Pages
mirror serves them directly. Complements the data.kitware.com
hashsum mirror already published for the same fixtures.

Author: hjmjohnson

CID/bafkreiadqbxipyw2b5wj7dikqk2frhn46yu3i5yxvqxuibekamchbjs7ma

@@ -0,0 +1,13 @@
+ObjectType = Image
+NDims = 3
+BinaryData = True
+BinaryDataByteOrderMSB = False
+CompressedData = False
+TransformMatrix = 1 0 0 0 1 0 0 0 1
+Offset = 0 0 0
+CenterOfRotation = 0 0 0
+AnatomicalOrientation = RAI
+ElementSpacing = 1 1 1
+DimSize = 128 128 128
+ElementType = MET_UCHAR
+ElementDataFile = Synthetic-04-RegularStepGradientDescent.raw

CID/bafkreiak5avehlpi7t5g7pg7db7ivei3omlbx4qor6mjs2u5kld6t6oiz4

@@ -0,0 +1,14 @@
+ObjectType = Image
+NDims = 3
+BinaryData = True
+BinaryDataByteOrderMSB = False
+CompressedData = True
+CompressedDataSize = 409073
+TransformMatrix = 1 0 0 0 1 0 0 0 1
+Offset = 0 0 0
+CenterOfRotation = 0 0 0
+AnatomicalOrientation = RAI
+ElementSpacing = 1 1 1
+DimSize = 128 128 128
+ElementType = MET_FLOAT
+ElementDataFile = Synthetic-04-Speed.zraw