✨ feature: bind support for render

[efectn]

Like #1604 but backward-compatible.

[ReneWerner87]

@efectn Looks good, but can we outsource some of the loops in sub functions? The binding and local vars stuff maybe

And don't forget the documentation.

[efectn]

@efectn Looks good, but can we outsource some of the loops in sub functions? The binding and local vars stuff maybe

And don't forget the documentation.

done

[ReneWerner87]

after the last performance adjustments

[ReneWerner87]

master:

[ReneWerner87]

5344d3a

better overview with the test template engine, due to less allocations within the render process