Routes the selected input control signal to the output, nominally muting all others.
The signal selection is dynamically performed via the 5th control input (its floating-point
value rounded up to the nearest integer value, with out-of-bounds protection).
The instantaneous selection is displayed in the "Active input" readout in the Parameter Window.
The "Output gain" slider adjusts the output level, and
the "Leakiness" slider enables the switching to be suppressed to any desired degree,
thereby allowing all the non-selected input(s) to "leak" into the output.
IMPORTANT: This switch is not a "true" switch in the sense that it only mutes the un-selected signal
ports rather than de-activate all components on those sub-branches connected to the un-selected ports. Hence all
components on all sub-branches are continuously executed in real-time -- albeit, some with muted
signals -- so caution should be exercised when using such switches in order that the CPU is not
exhausted by excessive numbers of components.
