lloda/ra-ra: A C++20 array and expression template library with some J/APL features

lloda d8ff9fccf4 Cleanup		23 órája%!(EXTRA string=)
..
CMakeLists.txt	d8ff9fccf4 Cleanup	18 órája%!(EXTRA string=)
SConstruct	d8ff9fccf4 Cleanup	18 órája%!(EXTRA string=)
headers.png	4266050494 Rename ra/bootstrap.hh -> ra/base.hh, ra::xI -> ra::xi	1 éve
index.html	3cb3c757ea Rename Expr to Map	1 hete
my-bib-macros.texi	509bf27cb5 Check compile time sized expressions at compile time	6 éve
ra-ra.bib	509bf27cb5 Check compile time sized expressions at compile time	6 éve
ra-ra.texi	3cb3c757ea Rename Expr to Map	1 hete