- add sdkconfig for NO_SPIRAM and SPIRAM situation

- detect snapcast configuration and init everything accordingly, e.g sample rate, chunk duration, ...
  o calculate apll predefines in dependence of sample rate
  o communicate these settings to interested parties
- remove typos

components/dsp_processor/include/dsp_processor.h

@@ -39,7 +39,7 @@ typedef struct pnode {
   struct pnode *next;
 } pnode_t;
 
-void dsp_setup_flow(double freq, uint32_t samplerate);
+void dsp_setup_flow(double freq, uint32_t samplerate, uint32_t chunkDurationMs);
 int dsp_processor(char *audio, size_t chunk_size, dspFlows_t dspFlow);
 void dsp_set_xoverfreq(uint8_t, uint8_t, uint32_t);