Kajetans C++ standard library without any C++ dependencies

Kajetan Johannes Hammerle e076804076 Merge with C core vor 8 Monaten
cmake e076804076 Merge with C core vor 8 Monaten
include e076804076 Merge with C core vor 8 Monaten
old e076804076 Merge with C core vor 8 Monaten
performance e076804076 Merge with C core vor 8 Monaten
src e076804076 Merge with C core vor 8 Monaten
test e076804076 Merge with C core vor 8 Monaten
testData e076804076 Merge with C core vor 8 Monaten
.clangd e076804076 Merge with C core vor 8 Monaten
.gitignore e076804076 Merge with C core vor 8 Monaten
CMakeLists.txt e076804076 Merge with C core vor 8 Monaten