Create new aptos collector

[tonynguyen-ccl]

• Refactor the HTTP interface to include get request
• Add first version of Aptos collector and to the registries

To verify this exporter working, please setup as below:

Content for: config/exporter_example/config.yml

blockchain: "Aptos"
network_name: "Testnet"
network_type: "Testnet"
collector: "aptos"
endpoints:
  - url: https://rpc.ankr.com/http/aptos_testnet/v1/
    provider: Public

Content for: config/exporter_example/validation.yml

allowed_providers:
  - Public

Then follow the instruction in README.md as below:

export CONFIG_FILE_PATH="config/exporter_example/config.yml"
export VALIDATION_FILE_PATH="config/exporter_example/validation.yml"

docker-compose build
docker-compose up -d

curl localhost:8000/metrics # Exporter - can view in web UI too
curl localhost:3000         # Grafana - can view in web UI too
curl localhost:9090         # Prometheus - can view in web UI too