Add setSampleRate to BasicFilters and update LOMM allpass sample rate (#7048)

include/BasicFilters.h

@@ -328,6 +328,16 @@ public:
 		}
 	}
 
+	inline void setSampleRate(const sample_rate_t sampleRate)
+	{
+		m_sampleRate = sampleRate;
+		m_sampleRatio = 1.f / m_sampleRate;
+		if (m_subFilter != nullptr)
+		{
+			m_subFilter->setSampleRate(m_sampleRate);
+		}
+	}
+
 	inline sample_t update( sample_t _in0, ch_cnt_t _chnl )
 	{
 		sample_t out;