Honor tmplpath in wrapped template renderers

Before this change you had to directly use `render_*_tmpl()` in order to
use `tmplpath`. Failing that, by using the renderers wrapped with
`wrap_tmpl_func()` the `tmplpath` argument was not used.

Fixes saltstack/salt#7626
Verticalize arguments
Catch file not found
Merge pull request #7627 from holmboe/issue-7626-tmplpath

Issue 7626 tmplpath