sysutils/file: Update to 5.36

While I'm here:

• Remove obsolete CONFLICTS of sysutils/tct - that port has gone long ago on 2007-04-06

Changelog since 5.34:

• Fix cast to use cast macros
• Add UCS-32 builtin detection (PR/61) reported by tmc
• Fix stack read (PR/62) and write (PR/64) stack overflows reported by spinpx
• Add FreeBSD ELF core file support (John Baldwin)
• PR/30: Allow all parameter values to be set (don't treat 0 specially)
• handle default annotations on the softmagic match instead at the end.
• PR/23: Recognize JSON files
• PR/18: file --mime-encoding should not print mime-type

PR: 235788
Submitted by: Jason Harris (maintainer)
Approved by: miwi (mentor)
Differential Revision: https://reviews.freebsd.org/D19394