FemtoOS Data Structures

Here are the data structures with brief descriptions:

TextendedTick	It is assumed that the union matches Full with LowBtye/HighByte
TosData	Since at that time a task is running there is no need for the OS stack, we make a union of the background variables and the OS stack
Tselect
TtaskControlBlock	Per task we have one task control block which holds all dynamic information of a task
TtaskDefinitionBlock	Per task we have one task definition block which holds all static information of a task
TtaskExtendedControlBlock
TtaskSave	TtaskSave is the structure which holds the "background" variables
Ttick	We use two different types of tick, Ttick and TextendedTick

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