Updated matter decoder to show more info, and added a homekit decoder.

vendor-equivalents.tsv

@@ -0,0 +1,20 @@
+# vendor-equivalents.tsv -- vendor IDs that mean the same company (mergers,
+# acquisitions, rebrands). matter-decode.sh uses this to widen a product-name
+# lookup and to annotate a vendor name when the decoded vendor has an equivalent.
+#
+# Format (tab-separated, two columns):
+#
+#     <alias vendor id>  <canonical vendor id>
+#
+# The canonical id is the "surviving" vendor; it must NOT itself appear in
+# column 1 (one-hop / canonical form). Every equivalent in a group points at the
+# same canonical id. Lines beginning with '#' are ignored.
+#
+# This file is hand-edited: add a row here when one company acquires or merges
+# with another, so that products registered under either ID resolve together.
+# Vendor IDs are decimal, as shown on the Vendor ID line (the 0x-hex in
+# parentheses is for reference only).
+#
+#   Feit Electric Company, Inc. acquired LIFX, so a Feit (5155) device and a
+#   LIFX (4870) device are the same company. LIFX is the canonical id here.
+5155	4870