GitLab

Adding switch widget based on qml. Updated tag cloud accordingly to allow switching betwwen tag union (new feature) or intersection (default) filtering.

Conflicts:
	src/dtkComposer/dtkComposerStackCommand.cpp

selected nodes

Remove html tag from item description in tag cloud's item list delegate. Keep it when sliding into the extended description.

Turned composer factory view into a tag cloud. Updated factory accordingly. From now on, every single node api should come with a dedicated html description including only basic tags such as p, b, i, ul or li. These descriptions are listed in the composition layer resource file: dtkComposer.qrc. See the constant nodes pi or e for an example.