Import veque

https://github.com/Shmoopty/veque/blob/master/include/veque.hpp

Author: adazem009

Doxyfile

@@ -959,7 +959,8 @@ RECURSIVE              = YES
 
 EXCLUDE                = docs/theme \
                          include/scratchcpp/spimpl.h \
-                         include/scratchcpp/signal.h
+                         include/scratchcpp/signal.h \
+                         include/scratchcpp/veque.h
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded