Work/non template container#47

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tfry-git wants to merge 21 commits intomasterfrom

work/non-template-container

Commits on Jan 12, 2020

Create a template-free alternative to EmbAJAXContainer
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Commits on Jan 19, 2020

This EmbAJAXElementList c'tor looks fairly promising, but I'll have to test what it means for code size.
tfry-git
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Make variadic c'tor type-safe
tfry-git
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Adds some more constness. This can help save some bytes
tfry-git
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Commits on Jan 12, 2022

Commits on Mar 12, 2023

Commits on Apr 29, 2023

Merge branch 'master' into work/non-template-container
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Commits on May 2, 2023

More constexpr constructors
tfry-git
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Commits on May 4, 2023

Convert radio group to non-templated (with compatiblity layer, for now)
tfry-git
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