By creating copies of the required inputs on the main thread just before
the task is spawned. A;so if task is still running when new data can be
copied then the task is interrupted thus avoiding concurrency without
mutexes. Atomics are used to signal state information used to determine
what and when to spawn.
Also includes update to pattern editor library and some fixes to syntax
highlighting error when custom types defined inside namespaces were used
inside the namespaces without the full qualified name and other small
changes mostly to improve the current style.
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