Issue #8099: Add binary:join/2 to stdlib #17858

Job	Run time
Event File	3s
Build Erlang/OTP (64-bit)	5m 57s
Build Erlang/OTP (iOS)	4m 41s
Build Erlang/OTP (Types and Flavors)	7m 50s
Build Erlang/OTP (macOS)	5m 22s
Build Erlang/OTP (32-bit)	9m 35s
Build Erlang/OTP (Windows)	13m 28s
Build Erlang/OTP (cross-compile)	14m 34s
Build and check documentation	5m 17s
Build Erlang/OTP (clang)	5m 22s
Run static analysis	6m 21s
Test Erlang/OTP (stdlib)	1h 7m 49s
Release Erlang/OTP	0s
Test Erlang/OTP (system)	7m 54s
	2h 34m 13s

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