Use Chugraph instead of Chubgraph

[heuermh]

https://github.com/ccrma/chuck/blob/1a9e7e7ab16010038b78cc4936fe7ee4a7c49bbd/notes/VERSIONS#L26

$ find . -name "*.ck" | xargs grep "Chubgraph"
./lick/kick/Thud.ck:public class Thud extends Chubgraph
./lick/kick/Fwak2.ck:public class Fwak2 extends Chubgraph
./lick/kick/Kick.ck:public class Kick extends Chubgraph
./lick/kick/Fwak.ck:public class Fwak extends Chubgraph
./lick/kick/Boom.ck:public class Boom extends Chubgraph
./lick/kick/Duff.ck:public class Duff extends Chubgraph
./lick/kick/Thwok.ck:public class Thwok extends Chubgraph
./lick/kick/Thump.ck:public class Thump extends Chubgraph
./lick/analysis/SigmuGainFollower.ck:public class SigmuGainFollower extends Chubgraph
./lick/analysis/SigmuPitchFollower.ck:public class SigmuPitchFollower extends Chubgraph
./lick/analysis/EnvelopeFollower.ck:public class EnvelopeFollower extends Chubgraph
./lick/analysis/PitchFollower.ck:public class PitchFollower extends Chubgraph
./lick/analysis/SigmuFollower.ck:public class SigmuFollower extends Chubgraph
./lick/snare/Snare.ck:public class Snare extends Chubgraph
./lick/snare/Czh.ck:public class Czh extends Chubgraph
./lick/snare/Tss.ck:public class Tss extends Chubgraph
./lick/snare/Cch.ck:public class Cch extends Chubgraph
./lick/snare/Dnn.ck:public class Dnn extends Chubgraph
./lick/effect/Effect.ck:public class Effect extends Chubgraph
./lick/synth/SawRamp.ck:public class SawRamp extends Chubgraph
./lick/synth/Fat.ck:public class Fat extends Chubgraph
./lick/synth/CircleRamp.ck:public class CircleRamp extends Chubgraph
./lick/synth/BassDelay3.ck:public class BassDelay3 extends Chubgraph
./lick/synth/DoublePulse.ck:public class DoublePulse extends Chubgraph
./lick/synth/Mdrone.ck:public class Mdrone extends Chubgraph
./lick/synth/BassDelay2.ck:public class BassDelay2 extends Chubgraph
./lick/synth/BassDelay.ck:public class BassDelay extends Chubgraph
./lick/synth/Lurverly.ck:public class Luverly extends Chubgraph
./lick/synth/Sauce.ck:public class Sauce extends Chubgraph
./lick/lfo/SampleHold.ck:public class SampleHold extends Chubgraph
./lick/lfo/SmoothSampleHold.ck:public class SmoothSampleHold extends Chubgraph
./lick/lfo/Hyper.ck:public class Hyper extends Chubgraph
./lick/hat/Hat.ck:public class Hat extends Chubgraph
./lick/filter/SVF.ck:public class SVF extends Chubgraph
./lick/delay/Disaster.ck:public class Disaster extends Chubgraph

[heuermh]

Closing as duplicate of #14