Refactoring of the add modulator plugin to use prototype. The last commit message was in error. That commit contained the equivalent changes for the accumulate modulator.
Refactoring of the add modulator plugin to use prototype. The last commit
message was in error. That commit contained the equivalent changes for the
accumulate modulator.

vizorvr/vizor,beni55/engi,vizorvr/vizor-create,engijs/engi,vizorvr/patches,vizorvr/patches,vizorvr/vizor,vizorvr/patches,engijs/engi,beni55/engi,vizorvr/vizor,beni55/engi,vizorvr/patches,engijs/engi,vizorvr/vizor-create,vizorvr/vizor-create,vizorvr/patches