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

* Update IDF to e931fe9 and add esp-face

* Fix PIO builds fail because of sketch size

* Fix example build failing for Arduino

Author: me-no-dev

boards.txt

@@ -44,6 +44,9 @@ esp32.menu.PartitionScheme.minimal.build.partitions=minimal
 esp32.menu.PartitionScheme.no_ota=No OTA (Large APP)
 esp32.menu.PartitionScheme.no_ota.build.partitions=no_ota
 esp32.menu.PartitionScheme.no_ota.upload.maximum_size=2097152
+esp32.menu.PartitionScheme.huge_app=Huge APP (3MB No OTA)
+esp32.menu.PartitionScheme.huge_app.build.partitions=huge_app
+esp32.menu.PartitionScheme.huge_app.upload.maximum_size=3145728
 esp32.menu.PartitionScheme.min_spiffs=Minimal SPIFFS (Large APPS with OTA)
 esp32.menu.PartitionScheme.min_spiffs.build.partitions=min_spiffs
 esp32.menu.PartitionScheme.min_spiffs.upload.maximum_size=1966080

libraries/ESP32/examples/Camera/CameraWebServer/CameraWebServer.ino

@@ -124,7 +124,7 @@ void setup() {
 
   //drop down frame size for higher initial frame rate
   sensor_t * s = esp_camera_sensor_get();
-  s->set_framesize(s, FRAMESIZE_CIF);
+  s->set_framesize(s, FRAMESIZE_QVGA);
 
   WiFi.begin(ssid, password);
 
@@ -144,5 +144,5 @@ void setup() {
 
 void loop() {
   // put your main code here, to run repeatedly:
-
+  delay(10000);
 }