Add block explorers for TBSI networks (ethereum-lists#3200)

* Create eip155-1708.json

* Create eip155-1707.json

* eip155-1707.json: add faucets

* eip155-1708.json: fix duplicated short name

* Update TBSI networks

* Add block explorers

Author: kitt-tientanopajai

_data/chains/eip155-1707.json

@@ -12,5 +12,12 @@
   "infoURL": "https://blockchain.or.th",
   "shortName": "TBSI",
   "chainId": 1707,
-  "networkId": 1707
+  "networkId": 1707,
+  "explorers": [
+    {
+      "name": "blockscout",
+      "url": "https://exp.blockchain.or.th",
+      "standard": "EIP3091"
+    }
+  ]
 }

_data/chains/eip155-1708.json

@@ -12,5 +12,12 @@
   "infoURL": "https://blockchain.or.th",
   "shortName": "tTBSI",
   "chainId": 1708,
-  "networkId": 1708
+  "networkId": 1708,
+  "explorers": [
+    {
+      "name": "blockscout",
+      "url": "https://exp.testnet.blockchain.or.th",
+      "standard": "EIP3091"
+    }
+  ]
 }