Merge from VT (#7)

* Fix crash while parsing PE Rich header

File e77b007c9a964411c5e33afeec18be32c86963b78f3c3e906b28fcf1382f46c3 has a Rich header of only 8 bytes, which is smaller than the RICH_SIGNATURE structure. This was causing a crash when some of the `rich_xxx` functions were used with this file.

* Fix warning

`_rich_version` in PE module should return an `int64_t` instead of `uint64_t`.

* Use YR_MAX_PATH instead of MAX_PATH (VirusTotal#2090)

Replace all instances of `MAX_PATH` with `YR_MAX_PATH`.

* Adding Veeam (VirusTotal#2083)

Adding Veeam to list of companies that use YARA.

* Add Cado to who is using Yara (VirusTotal#2086)

* Mitigate stack overflow when scanning very deep directory trees.

Closes VirusTotal#2088.

* Remove all references to ERROR_TOO_MANY_SCAN_THREADS

This error code is not used anymore. Closes VirusTotal#2068.

* Use latest MacOS in build workflow.

* Use MacOS 13 in build workflow.

For some reason in MacOS 14 the build fails because the `configure` script is unable to find the Jansson library, even thought it is correctly installed by `brew`.

* docs: minor updates to xor (VirusTotal#2098)

* use new module macros in docs (VirusTotal#2100)

Co-authored-by: Tad Keller <[email protected]>

* filemap: define PROC_SUPER_MAGIC, avoid linux/magic.h (VirusTotal#2103)

PR VirusTotal#1848 caused build issues with some "unusual" build configurations
– apparently we can't rely on linux/magic.h being present when
cross-building for musl libc.

Defining PROC_SUPER_MAGIC should not cause a problems since it should
be considered part of the Linux kernel/user API and it is unlikely to
change.

---------

Co-authored-by: Victor M. Alvarez <[email protected]>
Co-authored-by: Chris Arceneaux <[email protected]>
Co-authored-by: chrisdoman <[email protected]>
Co-authored-by: Wes <[email protected]>
Co-authored-by: Tad Keller <[email protected]>
Co-authored-by: Tad Keller <[email protected]>
Co-authored-by: Hilko Bengen <[email protected]>