Update to iOS 13 and Libarchive 3.4.3

[Sn0wfreezeDev]

Hi,
your scripts and the Xcode project where quite helpful in building for all Apple OSes.
As the current scripts and Libarchive build are outdated I updated those files and created a build script that creates a fat binary for iOS and macOS.

Kind regards
Alexander Heinrich

[zyphs21]

@Sn0wfreezeDev Hello, Thanks for your work. I use your branch but encounter "Undefined symbols" problem. Any idea to solve this ?

Undefined symbols for architecture arm64:
  "___archive_ppmd8_functions", referenced from:
      _archive_read_format_zip_cleanup in libarchive-ios.a(archive_read_support_format_zip.o)
      _zip_read_data_zipx_ppmd in libarchive-ios.a(archive_read_support_format_zip.o)
      _zipx_ppmd8_init in libarchive-ios.a(archive_read_support_format_zip.o)
  "_BZ2_bzDecompress", referenced from:
      _bzip2_filter_read in libarchive-ios.a(archive_read_support_filter_bzip2.o)
      _decompress in libarchive-ios.a(archive_read_support_format_7zip.o)
      _zip_read_data_zipx_bzip2 in libarchive-ios.a(archive_read_support_format_zip.o)
  "_BZ2_bzDecompressEnd", referenced from:
      _bzip2_filter_read in libarchive-ios.a(archive_read_support_filter_bzip2.o)
      _bzip2_filter_close in libarchive-ios.a(archive_read_support_filter_bzip2.o)
      _decompress in libarchive-ios.a(archive_read_support_format_7zip.o)
      _init_decompression in libarchive-ios.a(archive_read_support_format_7zip.o)
      _free_decompression in libarchive-ios.a(archive_read_support_format_7zip.o)
      _archive_read_format_zip_cleanup in libarchive-ios.a(archive_read_support_format_zip.o)
      _zip_read_data_zipx_bzip2 in libarchive-ios.a(archive_read_support_format_zip.o)
      ...
  "_BZ2_bzDecompressInit", referenced from:
      _bzip2_filter_read in libarchive-ios.a(archive_read_support_filter_bzip2.o)
      _init_decompression in libarchive-ios.a(archive_read_support_format_7zip.o)
      _zipx_bzip2_init in libarchive-ios.a(archive_read_support_format_zip.o)
  "_archive_read_support_format_rar5", referenced from:
      _archive_read_support_format_all in libarchive-ios.a(archive_read_support_format_all.o)
  "_archive_read_support_filter_zstd", referenced from:
      _archive_read_support_filter_all in libarchive-ios.a(archive_read_support_filter_all.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)