BufWr doesn't throw an error for wrong input rate

[telephon]

When you play a control rate signal through an audio rate BufWr it doesn't complain, but records arbitrary spikes to the buffer.

b = Buffer.alloc(s, 1024);
{ BufWr.ar(0, b, Phasor.ar(0, 1, 0, BufFrames.kr(b))); 0.0 }.play;
b.plot

To fix this, we could either convert the input automatically or throw an error, like this:

checkInputs {
		if (rate == 'audio') {
			if(inputs.at(1).rate != 'audio') {
				^"phase input is not audio rate: % %".format(inputs.at(1), inputs.at(1).rate)
			} {
				if(inputs[3..].any { |x| x.rate != 'audio' }) {
					^"inputArray input is not audio rate: % %".format(inputs[3..], inputs[3..].collect(_.rate))
				}
			}
		};
		^this.checkValidInputs
	}

[telephon]

{ BufWr.kr(5, 0, Phasor.kr(0, 1, 0, 1)); 0.0 }.play; // should not fail
{ BufWr.ar(5, 0, Phasor.ar(0, 1, 0, 1)); 0.0 }.play; // should fail
{ BufWr.ar(DC.ar(5), 0, Phasor.ar(0, 1, 0, 1)); 0.0 }.play; // should not fail