Merge remote-tracking branch 'origin/f-yodii-commands' into feature/yodii-layout-ben

Conflicts:
	Yodii.Engine.Tests/Yodii.Engine.Tests.csproj
Merge branch 'feature/yodii-layout-ben' of github.com:Invenietis/yodii into feature/yodii-layout-ben

Conflicts:
	Yodii.Engine.Tests/Yodii.Engine.Tests.csproj
Manual layout. (...)

- Graph update requests will now call exclusively call Relayout, and no longer call GenerateGraph.
- Graph relayouts will now keep existing positions.
- New vertices will now all spawn at 0, 0. Behavior change pending.
- Temporary removal of DefaultEdgeRoutingAlgorithm and DefaultOverlapRemovalAlgorithm.
- Global, automatic repositioning of vertices is kept, but is no longer enabled by default. See YodiiLayout.NextRecomputeForcesPositions.