List contract templates

curl --request GET \
  --url https://sandbox.oumla.com/api/v1/contract-templates \
  --header 'x-api-key: <api-key>' \
  --header 'x-sdk-version: <x-sdk-version>'

{
  "result": {
    "data": [
      {
        "id": "<string>",
        "name": "<string>",
        "description": "<string>",
        "longDescription": "<string>",
        "bytecode": "<string>",
        "sourceCode": "<string>",
        "type": "<string>",
        "docs": {}
      }
    ],
    "next": {},
    "count": 123
  }
}