Log Message:
Update {py-,}yara to version 3.7.0.

Pkgsrc changes:
 * adapt PLIST
 * remove patch which no longer applies
 * apply patches for proper value domain for isxxxx() functions/macros

Upstream changes:
 * time module (Wesley Shields)
 * yara command-line tool now accept multiple rule files
 * Allow a configurable limit for the number of strings per rule
   (option --max-strings-per-rule)
 * Implement integrity check for compiled rules
 * Implement API for customizingimport statement (@edhoedt)
 * Scan process memory in FreeBSD and OpenBDS (Hilko Bengen)
 * BUGFIX: Negated character classes not working with case-insensitive
   regexps (#765)
 * BUGFIX: Multiple bugs while parsing ELF files (Nate Rosenblum)
 * BUGFIX: Out-of-bounds access while parsing PE files.
 * BUGFIX: Memory leaks while parsing invalid rules.