Feature request: support -simhash

[M09Ic]

No description provided.

[ehsandeep]

@M09Ic Can you also include information for the below fields?

• Please describe your feature request:
• Describe the use case of this feature:

[M09Ic]

Sorry, I forgot to add a description.
Before, I used simhash to determine the page similarity. So I want to add simhash probe for body/header/all.

I used to use this library:https://github.com/mfonda/simhash

[M09Ic]

I think, we can add the -hash [hashtype] option
for example:
choice
-hash [md5/sha1/sha256/mmh3/simhash]

multi args
-hash md5,simhash