Use of std::invoke to run the body in algorithms and graph nodes

[kboyarinov]

Description

Change the execution of the body in TBB algorithms and Flow Graph nodes to use std::invoke instead of operator().
It allows to pass pointers to non-static member functions and non-static member objects as a body.
Affected components:

• parallel_for
• parallel_reduce
• parallel_deterministic_reduce
• parallel_for_each
• parallel_scan
• parallel_pipeline
• function_node
• multifunction_node
• async_node
• sequencer_node
• join_node with key_matching policy

Fixes # - issue number(s) if exists

• - git commit message contains an appropriate signed-off-by string (see CONTRIBUTING.md for details)

Type of change

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• bug fix - change that fixes an issue
• new feature - change that adds functionality
• tests - change in tests
• infrastructure - change in infrastructure and CI
• documentation - documentation update

Tests

• added - required for new features and some bug fixes
• not needed

Documentation

• updated in # - add PR number
• needs to be updated
• not needed

Breaks backward compatibility

• Yes
• No
• Unknown

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Other information

[vossmjp]

Partial review. So far have looked at _utils.h, parallel_for.h, parallel_for_each.h, parallel_scan.h, _pipeline_filters.h and parallel_reduce.h. Mostly looks good to me. A couple of small comments/questions. Still need to look at tests, conformance tests & flow graph.

[omalyshe]

Fixes needed.

[vossmjp]

The flow graph modifications look ok to me. Made a couple of comments to make sure I understand why certain invocation points are excluded.

[vossmjp]

Did a quick look through tests and they look ok to me.