Skip useless handler mappings calls while connecting

[albyrock87]

Description of Change

This is an alternative initial version of #27042.
Everything has already been explained there.

Based on/includes #28077 PR

Credits to @MartyIX to have explored the effectiveness of skipping specific mappers.

Key differences from the other PR:

• Avoid pre-mapping defaults: if the developer replaced the mapper and we skip execution, we're also skipping their custom code which would bring them wonder why their code it's not working while it should be
• Adds easy-to-use extension methods to IElement and IElementHandler to get the handler state
• We can selectively skip native calls close to them and by platform (for example on iOS MappingFrame takes care of all the coordinates, even translations, while on other platforms the situation is different)

Benchmark using Nalu Weather app

https://github.com/nalu-development/nalu/tree/main/Samples/Nalu.Maui.Weather

Click on the links in the table to download the speedscope.json file.

Platform	SetVirtualView (SR4)	SetVirtualView (PR)	Improvement
iOS	411.99ms	233.62ms	43%
Android	340.62ms	299.34ms	12%
Windows	1.94s	1.50s	22%

Thanks to @MartyIX for collecting speedscopes on Windows!

Benchmark (from CI - on iOS UI tests)

Note: there is some variability in the benchmark caused by the runner itself, but looking at many recent PRs, main branch never goes under 2600ms.

main branch

#27042 original PR

this PR

Issues Fixed

Fixes #17303