Assign score to host results

[Mzack9999]

Please describe your feature request:

The JSON result should be assigned a numeric score ranging from 0 to 100. A higher value would mean that the results are realistic. Instead, a value near zero means that the results are likely false positive. The calculation of such a number should be influenced by various factors, for example:

• [ ] if multiple retries yielded the same open ports results
• [x] If the open ports were detected previously (#293)
• [ ] If the same host exposes a lot of open ports (#379)
• [ ] If the service detection (actually not implemented) will confirm the port to be open

Describe the use case of this feature:

Potentially this could be helpful to filter out noise from results (ref. https://github.com/projectdiscovery/naabu/pull/292#issuecomment-1095762286)