cgsl_0404: Model startup and shutdown events by using Initialize Function and Terminate Function blocks for component deployment

ID: Title	cgsl_0404: Model startup and shutdown events by using Initialize Function and Terminate Function blocks for component deployment
Description	To model startup and shutdown behavior, use Initialize Function and Terminate Function blocks.
Notes	By following this guideline, the code generator produces one initialize function and one terminate function. When a Terminate Function block is not needed in the model, clear model configuration parameter Terminate function required (IncludeMdlTerminateFcn).
Rationale	Decouples the execution order of component initialize and terminate functions from the execution order across components. Separates component startup and shutdown functionality from periodic and aperiodic algorithm function code.
Model Advisor Check	Verify this guideline by using Model Advisor check Check Startup and Shutdown Event (Embedded Coder).
Examples	void CD_initialize(void) { . . . } void CD_terminate(void) { . . . }