Add NEXPACE validator info for testnet (#785)

Co-authored-by: Hyungrok Kim <hyungrok.kim@nexpace.io>

Author: rokrokss

testnet/029b6cbe344b179f1184e4a37a84da072f4e4cd98e88d7ff98731bb32a9cd281d2.json

@@ -0,0 +1,10 @@
+{
+  "id": 178,
+  "name": "NEXPACE",
+  "secp": "029b6cbe344b179f1184e4a37a84da072f4e4cd98e88d7ff98731bb32a9cd281d2",
+  "bls": "891c91e724372c11fe269f1619c7f56a782cf4873c6109885efa70feab50082ac412d4e8324c60bb0d6d3891abbf508d",
+  "website": "https://nexpace.io/",
+  "description": "The builder of @MaplestoryU, NEXPACE combines creator ideas with blockchain in a dynamic game community to push boundaries of the gaming ecosystem.",
+  "logo": "https://public.saasexch.com/static/cms/cmsSassLandingPage1/202505/d1ad01ff0436924508e53bbe22adb393.png",
+  "x": "https://x.com/Nexpace_HQ"
+}