simon/SCCD: The SCCD (Statecharts + Class Diagrams) compiler and runtime. @ da171175c568e168f3b9ffc6566096c9802ef02c

Joeri Exelmans 22af155800 Rust: progress with code generation for function closures		4 lat temu
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day_atlee	33969e5928 Controller and test framework can deal with bags of (simultaneous) input events. Add examples 19, 20 and 21 from Day & Atlee.	5 lat temu
features	22af155800 Rust: progress with code generation for function closures	4 lat temu
semantics	efbf059d2d Rust: Fix removing of events. XML parser: assert state IDs are valid IDs in Rust. Add 2 tests.	4 lat temu
xml_syntax	ff59de9675 Re-render test files as SVG images.	5 lat temu