Update IDF to e931fe9 and add esp-face (#2291)

* Update IDF to e931fe9 and add esp-face

* Fix PIO builds fail because of sketch size

* Fix example build failing for Arduino

tools/sdk/include/esp-face/frmn.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#if __cplusplus
+extern "C"
+{
+#endif
+
+#include "dl_lib.h"
+
+    /**
+     * @brief 
+     * 
+     * @param in 
+     * @return dl_matrix3d_t* 
+     */
+    dl_matrix3d_t *frmn(dl_matrix3d_t *in);
+
+    /**
+     * @brief 
+     * 
+     * @param in 
+     * @return dl_matrix3dq_t* 
+     */
+    dl_matrix3dq_t *frmn_q(dl_matrix3dq_t *in, dl_conv_mode mode);
+
+#if __cplusplus
+}
+#endif