Add parsing IP addresses (in all their variants)

[obsidianforensics]

Description
IP addresses can be represented in different ways. Add support in Unfurl to parse all these variants of IP addresses:

From https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/evasive-urls-in-spam/:

• Dotted decimal IP address: https://216.58.199.78 (this example uses Google.com’s IP)
• Octal IP address: https://0330.0072.0307.0116 (convert each decimal number to octal)
• Hexadecimal IP address: https://0xD83AC74E (convert each decimal number to hexadecimal)
• Integer or DWORD IP address: https://3627730766 (convert hexadecimal IP to integer)

References

• https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/evasive-urls-in-spam/