NEW: editors/dte

Hi ports --

Attached is a new port, editors/dte. dte is a small and easy to use
console text editor.

---
pkg/DESCR:
dte is a small and easy to use console text editor.

Features:
* Multiple buffers/tabs
* Unlimited undo/redo
* Search and replace
* Syntax highlighting
* Customizable color schemes
* Customizable key bindings
* Command language with auto-completion
* Jump to definition (using ctags)
* Jump to compiler error
---

Works well here, upstream has been really good working out issues and
even updating the openbsd-wip port. You'll note that on a machine with
clang, it'll use -std=gnu11 but it'll use -std=gnu99 if you're on a
platform with older gcc so I did not set COMPILER.

OK?

~Brian