Initializes trend client for instant trending.
Note: This function is to be called on
startup for each trend client if instant trend functionality is
necessary. To implement this without requiring a call to this
function from within the startup Cicode function, it has been
configured as a periodic event (listed as a CSV_TrendXClient
event). The first time the
event is processed the instant trend client functionality is
initialized. Any subsequent calls return immediately without
effect.