Support for inline Yara rules in addition to .yar files

[ITAYC0HEN]

What do you think of adding support for inline Yara rules for the Extractor / ExtractorManager? Currently I think that it only supports yara files stated in yara_rules = [...]. I think it can be nice to also be able to provide yara rules as a string so this can be matched against as well.

rules = '''
rule Dridex 
{
    meta:
     ...
     ...
}

rule Gozi
{
   strings:
     ....
}
'''

I personally prefer to use Yara files (.yar ) and not inline rules, but I think it can be nice extension