httpx is a fast and multi-purpose HTTP toolkit that allows running
multiple probes using the retryablehttp library.

Features:
 - Simple and modular code base making it easy to contribute.
 - Fast And fully configurable flags to probe multiple elements.
 - Supports multiple HTTP based probings.
 - Smart auto fallback from https to http as default.
 - Supports hosts, URLs and CIDR as input.
 - Handles edge cases doing retries, backoffs etc for handling WAFs.
