feat(secure-policies): support new and fix existing fields in malware policy

[ombellare]

feat(secure-policy): Add following fields to support malware runtime policy:

• use_yara_rules (bool)
• ignore_hashes (list of string hashes)
• use_regex (bool)
• ignore_paths (list of string paths to ignore from hash calculation)

Also fixed bug with current schema which does not support multiple hashes to be added to the additional_hashes and ignore_hashes field. Due to this schema change, customers will now need to change existing terraform definitions in their malware policies from:

additional_hashes {
  hash         = "304ef4cdda3463b24bf53f9cdd69ad3ecdab0842e7e70e2f3cfbb9f14e1c4ae6"
}

to

additional_hashes = [
  "304ef4cdda3463b24bf53f9cdd69ad3ecdab0842e7e70e2f3cfbb9f14e1c4ae6"
]

New hashes can now be added like:

additional_hashes = [
  "304ef4cdda3463b24bf53f9cdd69ad3ecdab0842e7e70e2f3cfbb9f14e1c4ae6",
  "304ef4cdda3463b24bf53f9cdd69ad3ecdab0842e7e70e2f3cfbb9f14e1c4ab7"
]

[airadier]

Hi @ombellare , is this ready for review? Can you add a small description of the purpose of the PR?

Thanks!

[ombellare]

Hi @airadier , please hold off on reviewing this PR for now since there is a schema change that might need to be communicated to customers before proceeding to merge the fix.
I have added a short description of the change so feel free to provide any early feedback if you would like!