test in progress to isolate issue #196
TTSampleMatrix - default sampleRate now conforms to TTEnvironment
TTSampleMatrix::adaptTo() - overriding parent method to include mSampleRate
TTBuffer::init() - adding sample rate to values set during initialization
removing some use of deprecated TTValue::getSize()
TTBuffer - adding getter/setter methods to address #196
TTBuffer::getSampleRate() fleshed out. see #196
TTSampleMatrix - change datatype of mSampleRate to TTUInt32 so that its consistent with TTAudioObjectBase
TTBuffer::test() created test 17 to ensure issue #196 stays closed