[READY] Implement LSP type/call hierarchies as actual hierarchies #696

Job	Run time
C++ Lint	6m 40s
Windows MSVC 17 x64 - C++ Benchmark	4m 41s
ubuntu-20.04 - C++ Benchmark	2m 21s
Windows MSVC 17 x64 - test run	33m 7s
ubuntu-20.04 - test run	23m 26s
Windows MSVC 17 x86 - test run	34m 46s
macos-12 - C++ Benchmark	2m 11s
Windows MSVC 16 x64 - test run	33m 20s
macos-12 - test run	27m 15s
ubuntu-20.04 - with Clang compiler - test run	23m 10s
ubuntu-20.04 - without libclang completer - test run	22m 3s
	3h 33m 0s

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