[READY] Update unicode support to version 15.1 #573

Job	Run time
C++ Lint	2m 51s
C++ Lint	6m 18s
ubuntu-20.04 - C++ Benchmark	1m 43s
ubuntu-20.04 - C++ Benchmark	1m 43s
ubuntu-20.04 - test run	18m 50s
ubuntu-20.04 - test run	18m 50s
Windows MSVC 17 x64 - C++ Benchmark	3m 33s
Windows MSVC 17 x64 - C++ Benchmark	3m 33s
macos-12 - C++ Benchmark	2m 14s
macos-12 - C++ Benchmark	2m 14s
Windows MSVC 17 x64 - test run	29m 18s
Windows MSVC 17 x64 - test run	29m 18s
macos-12 - test run	25m 20s
macos-12 - test run	25m 20s
Windows MSVC 17 x86 - test run	29m 19s
Windows MSVC 17 x86 - test run	29m 19s
ubuntu-20.04 - with Clang compiler - test run	18m 48s
ubuntu-20.04 - with Clang compiler - test run	18m 48s
Windows MSVC 16 x64 - test run	11m 49s
Windows MSVC 16 x64 - test run	27m 40s
ubuntu-20.04 - without libclang completer - test run	18m 45s
ubuntu-20.04 - without libclang completer - test run	18m 45s
	5h 44m 18s

Provide feedback