Esp32 c3 (#479)

* No VSPI

* I2s not default for S2 or C3

* include fixes

* remove ESP32C3 I2s support

* sdkconfig.h

* No Bitbang

src/internal/NeoEspBitBangMethod.cpp

@@ -28,6 +28,9 @@ License along with NeoPixel.  If not, see
 
 #include <Arduino.h>
 
+// ESP32C3 I2S is not supported yet 
+#if !defined(CONFIG_IDF_TARGET_ESP32C3)
+
 static inline uint32_t getCycleCount(void)
 {
     uint32_t ccount;
@@ -151,4 +154,5 @@ void IRAM_ATTR NeoEspBitBangBase_send_pixels_inv(uint8_t* pixels, uint8_t* end,
     }
 }
 
-#endif
+#endif // !defined(CONFIG_IDF_TARGET_ESP32C3)
+#endif //  defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)