Add Matlab compatible wrappers for base64_encode and base64_decode. * liboctave/util/oct-base64.cc, oct-base64.h (base64_decode_bytes): New function to decode base64 encoded strings into bytes. * libinterp/corefcn/data.cc (F__base64_decode_bytes__): New internal function to decode base64 encoded strings into bytes. * scripts/+matlab/+net/base64decode.m, scripts/+matlab/+net/base64encode.m: Add Matlab compatible wrappers for base64_encode and __base64_decode_bytes__. * scripts/+matlab/+net/module.mk: Add new file. * scripts/module.mk: Include new module.mk file. * doc/interpreter/system.txi: Add documentation for new functions to manual. * NEWS: Announce new functions.

--- a/NEWS	Tue Sep 22 17:19:46 2020 +0200
+++ b/NEWS	Tue Sep 22 15:59:00 2020 +0200
@@ -153,6 +153,8 @@
 * `jsondecode`
 * `jsonencode`
 * `listfonts`
+* `matlab.net.base64decode`
+* `matlab.net.base64encode`
 * `memory`
 * `rng`
 * `startsWith`