Add metadata for Kiln validator on testnet

Output of the registration operation:
```
[14:15:04] INFO     Tx status: 1                                                                                                                                                                  add_validator.py:238
           INFO     Tx hash: 0xbeb6d3510b986c254af7fb39ca597cd6f25e16859db3f09d45c2754375f860a5                                                                                                   add_validator.py:239

[14:15:05] INFO     Validator Created! ID: 225, Delegator: 0x8014ec1e8270df44b39E5D04973f5d1dB283E05D, Commission: 0                                                                              add_validator.py:280
```

Author: dud225

testnet/033c6c84b2199cfa53e1c51fe8feb4028e7e3621bc504ce954057de08c1aba32ef.json

@@ -0,0 +1,10 @@
+{
+  "id": 225,
+  "name": "Kiln",
+  "secp": "033c6c84b2199cfa53e1c51fe8feb4028e7e3621bc504ce954057de08c1aba32ef",
+  "bls": "82f7e0746f56dbf3ef5c89220f28f31525e6bedad063dfd5e98c61602ee136588a1838da3e046e1dd78b0946eedb3f45",
+  "website": "https://www.kiln.fi/",
+  "description": "Kiln - The institutional layer for onchain assets",
+  "logo": "https://public.kiln.fi/icon.png",
+  "x": "https://twitter.com/Kiln_finance"
+}