Docs: bring the YARA wiki page up to date

[mike-myers-tob]

Resolves #7110

• Removes outdated column pattern and explains the WHERE path LIKE syntax with examples
• Documents new flags and functionality added in the last year or so
• Clarifies some of the usage, and forms an initial version of a troubleshooting section
• Points to YARA rule-writing documentation
• Updates the examples with the current table schema
• I've tested all the examples myself (on Windows 10)

[directionless]

FWIW from my notes

testing in-line rules, I had to use newlines:

select * from yara where path LIKE '/tmp/example-data/%' and sigrule = 'rule hello_world {
strings:
$a = "Hello world"
condition: $a
}';

Scanning from a ruleset on disk:

select * from yara where path LIKE '/tmp/example-data/%' and sigfile = '/tmp/yara.sig';

[theopolis]

small nitpick, what do you think?