Calling prvCheckTasksWaitingTermination in vTaskEndScheduler #688

Job	Run time
CMake Example with Native GCC	22s
GNU MSP430 Toolchain	1m 8s
Native GCC	1m 6s
WIN32 MingW	3m 16s
WIN32 MSVC	3m 27s
GNU ARM Toolchain	1m 4s
	10m 23s

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