Use explicit template instantiation to speed up compile times

This way, changing some rendering code doesn't force recompilation of huge amounts of code. This includes the commit from !16 (merged)

changed the description

marked as a Work In Progress

added 1 commit

• b6046aa7 - Explicit templates: Fix windows build

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CI: https://www.graphics.rwth-aachen.de:9000/OpenFlipper-Free/OpenFlipper-Free/pipelines/8683

unmarked as a Work In Progress

assigned to @moebius

added 3 commits

• bed8928d - 1 commit from branch master
• a7c196a3 - Merge branch 'master' into explicit-templates
• bd58d642 - Fixed licenses and did some cleanup

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Please make sure, to use the correct license template. -> Already fixed.

mentioned in commit d0a7cdca

merged