Add support for [host|ip]:port

[Mzack9999]

Description

This PR extends naabu capabilities to accept unitary input targets in the following formats:

ip:port
host:port

While other targets are network-coalesced into minimal range(s) and iterated randomly with blackrock cipher (just like masscan) picking randomly from vectorized ips and ports spaces, for these new items with port the flow should be the following:

• No host discovery
• Connect|Syn scan only towards the specific port

Example:

$ echo home.test:443 | sudo go run . -debug -verbose

                  __
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 / _ \/ _ \/ _ \/ _ \/ // /
/_//_/\_,_/\_,_/_.__/\_,_/

                projectdiscovery.io

[INF] Current naabu version 2.1.6 (latest)
[INF] Running SYN scan with root privileges
[DBG] Received Transport (TCP) scan response from 192.168.1.1:443
[DBG] Received Transport (TCP) scan response from 192.168.1.1:443
[INF] Found 1 ports on host home.test (192.168.1.1)
home.test:443

Depends on:

• adding ip:port support ipranger#60

Supersedes:

• Add ip:port option #631

[ehsandeep]

naabu $echo google.com:443 | ./naabu 

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/_//_/\_,_/\_,_/_.__/\_,_/

		projectdiscovery.io

[INF] Current naabu version 2.1.6 (latest)
[INF] Running CONNECT scan with non root privileges
[INF] Found 1 ports on host google.com (142.250.194.238)
google.com:443
naabu $echo google.com:443 | sudo ./naabu 
Password:

                  __
  ___  ___  ___ _/ /  __ __
 / _ \/ _ \/ _ \/ _ \/ // /
/_//_/\_,_/\_,_/_.__/\_,_/

		projectdiscovery.io

[INF] Current naabu version 2.1.6 (latest)
[INF] Running host discovery scan
[INF] Running SYN scan with root privileges
[INF] Found 1 ports on host google.com (142.250.194.238)
google.com:443
echo google.com:443 | ./naabu -p 80

                  __
  ___  ___  ___ _/ /  __ __
 / _ \/ _ \/ _ \/ _ \/ // /
/_//_/\_,_/\_,_/_.__/\_,_/

		projectdiscovery.io

[INF] Current naabu version 2.1.6 (latest)
[INF] Running host discovery scan
[INF] Running SYN scan with root privileges
[INF] Found 2 ports on host google.com (216.58.196.206)
google.com:443
google.com:80

[tarunKoyalwar]

LGTM !