Add a script to get subscribed and onboarded laconicd accounts (#22)

Part of [laconicd testnet validator enrollment](#19)

The script:
- Fetches onboarded participants using the configured laconicd GQL endpoint
- Reads a given CSV file with subscribers data
- Fetches all the onboarding txs using given laconicd RPC endpoint
- For each subscriber registered as a participant, maps the laconic pubkey and latest onboarding tx height
- Outputs the result in a CSV

Co-authored-by: Nabarun <nabarun@deepstacksoft.com>
Reviewed-on: #22
Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
Co-committed-by: Prathamesh Musale <prathamesh.musale0@gmail.com>

scripts/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "testnet-laconicd-stack",
+  "version": "0.1.0",
+  "main": "index.js",
+  "repository": "git@git.vdb.to:cerc-io/testnet-laconicd-stack.git",
+  "license": "UNLICENSED",
+  "private": true,
+  "devDependencies": {
+    "@types/cli-progress": "^3.11.6",
+    "@types/node": "^22.2.0",
+    "@types/yargs": "^17.0.33",
+    "typescript": "^5.5.4"
+  },
+  "dependencies": {
+    "@cerc-io/registry-sdk": "^0.2.6",
+    "@cosmjs/stargate": "^0.32.4",
+    "csv-parse": "^5.5.6",
+    "csv-parser": "^3.0.0",
+    "csv-writer": "^1.6.0",
+    "dotenv": "^16.4.5",
+    "yargs": "^17.7.2"
+  },
+  "scripts": {
+    "build": "tsc",
+    "map-subscribers-to-participants": "node dist/map-subscribers-to-participants.js"
+  },
+  "packageManager": "yarn@1.22.19+sha1.4ba7fc5c6e704fce2066ecbfb0b0d8976fe62447"
+}