add find_vertex, because I keep re-implementing it
treed16d5c1caf405046a3da1b028ef63793b0958144
-rw-r--r-- 29 .gitignore
-rw-r--r-- 750 LICENSE
-rw-r--r-- 1600 README
-rw-r--r-- 35 bld.proj
-rw-r--r-- 24544 quiver.myr
drwxr-xr-x - test