Fix UB in AlignedNumber

See merge request !1448

(cherry picked from commit 7428ac80)

7a5c4fc3 Use std::align to check if an address is aligned
2823d128 Skip miss-alignment check for types with 1 byte alignment
84291998 Use std::align on address miss-alignment
2017696c Check that address is misaligned
234f2098 Check alignment on placement new instead of constructor

Co-authored-by: Simon Praetorius <simon.praetorius@tu-dresden.de>