cleanup readme

outsource idisp and forge functions

Merge branch 'master' of /media/sdext/omk/canvas.lv2

add first unit test

Merge commit 'd424e4a5f51d594b33e390668ea7115e671f6cdf'

Squashed 'gitlab-ci/' changes from b03a3c0..d20b0cd

d20b0cd spdx: put contact address in angle brackets
045a718 Make compatible with REUSE spec 3.0
3983bd8 run tests in valgrind, compile with -fsanitize.

git-subtree-dir: gitlab-ci
git-subtree-split: d20b0cda61f1186f11d7502e8e42784636b82241

make reuse 3.0 compatible, add meson declaration

add define to skip nanovg implementation.

include render_cairo.h in idisp.h.

Use GLES3, deprecate direct inclusion of render.h.

Squashed 'gitlab-ci/' changes from eeba83f..b03a3c0

b03a3c0 define global variables.

git-subtree-dir: gitlab-ci
git-subtree-split: b03a3c0c20181a70144e989ec7aa3dd96fa71f59

Merge commit 'c00e344295fd25da16cbdbe52b681cf46d0d27a6' into master

Squashed 'gitlab-ci/' content from commit eeba83f

git-subtree-dir: gitlab-ci
git-subtree-split: eeba83f11343203c1e2a5f3e89c82c6797816a07

Merge commit 'b5ae3adbd83ba755446c5db43db2c981dcd92abc' as 'gitlab-ci'

fix fitting in to bounding box.

fixes for nanovg backend.

add inline_display wrapper.

fix pedantic compiler warnings.

fix GL header inclusions.

improve prototype of nanovg backend.