grayhook f46e1a6d0b add iterators ...

New iterators can be used to iterate through Nodes.

Squashed commit of the following:

commit 602ed679631647dd1c8874b0b0145fcb09458341
Author: GRayHook <s@marinkevich.ru>
Date:   Fri Aug 1 19:36:46 2025 +0700

    fup after CR

commit 08f7b59aa7
Author: GRayHook <s@marinkevich.ru>
Date:   Fri Aug 1 19:20:48 2025 +0700

    normalize members of iterator

commit 038cbb73f4
Author: GRayHook <s@marinkevich.ru>
Date:   Fri Aug 1 18:57:08 2025 +0700

    bump

commit 0f93988fb6
Author: GRayHook <s@marinkevich.ru>
Date:   Fri Aug 1 11:32:35 2025 +0700

    tmp

2025-08-01 19:40:48 +07:00

..

BaseIterator.h

add iterators

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BFSIterator.h

add iterators

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DFSIterator.h

add iterators

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Traversal.h

add iterators

2025-08-01 19:40:48 +07:00