v2.0.1 - Add support for DoT, DoH and DNSSEC

[farrokhi]

• Add support for DNSSEC
• Add -F to display flags for each response (dnsping)
• Display full response in verbose mode (dnsping)
• Add DoT (DNS over TLS) support (dnsping, dnseval)
• Add DoH (DNS over HTTPS) support (dnsping, dnseval)
• Add TCP support
• Improved JSON output support for dnseval
• Refactor and PEP8 cleanup
• Do not use system resolver when not needed
• Add support for user defined source IP address
• Add user-specified destination port (-p/--port)
• Improve error handling
• Display last response code for each entry
• Rework custom socket and custom TTL support
• Rework time calculation logic to eliminate an extra DNS request that was just sent for timing (dnstraceroute)
• Update docs (output samples, use cases, etc)
• Use proper terminology (in code) to reduce confusion

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This discussion was created from the release Add support for DoT, DoH and DNSSEC.