errstack: use runtimeutil.GetCallers

report global error initialization

erriter: add All()

It returns an iterator.

use reflecutil types without the "For" suffix

errval: don't call pretty.Write directly

errstack: show the full file path

update go-libs to v0.7.3

update go-libs to v0.7.2

update go-libs to v0.7.1

use unsafeio