Add draw-arrow icons

Summary:
This patch adds draw-highlight icons requested by Okular for D15580.

The design is based on `draw-line` with an arrowhead. I am not quite sure about the naming as there are already `draw-arrow-{up,down,forward,back}` icons that symlink to the standard arrow icons. I could not find an application where these are used.

CCBUG: 408283

Test Plan: {F7572097}

Reviewers: #vdg, ndavis

Reviewed By: #vdg, ndavis

Subscribers: ndavis, kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D24555