add esp32-camera version

Author: Jason2866

build.sh

@@ -259,6 +259,9 @@ for component in `ls "$AR_COMPS"`; do
         echo $component_version >> "$AR_TOOLS/esp32-arduino-libs/versions.txt"
     fi
 done
+# esp32-camera version
+component_version="esp32-camera: "$(git -C "$AR_COMPS/esp32-camera" symbolic-ref --short HEAD || git -C "$AR_COMPS/esp32-camera" tag --points-at HEAD)" "$(git -C "$AR_COMPS/esp32-camera" rev-parse --short HEAD)
+echo $component_version >> "$AR_TOOLS/esp32-arduino-libs/versions.txt"
 # TinyUSB version
 component_version="tinyusb: "$(git -C "$AR_COMPS/arduino_tinyusb/tinyusb" symbolic-ref --short HEAD || git -C "$AR_COMPS/arduino_tinyusb/tinyusb" tag --points-at HEAD)" "$(git -C "$AR_COMPS/arduino_tinyusb/tinyusb" rev-parse --short HEAD)
 echo $component_version >> "$AR_TOOLS/esp32-arduino-libs/versions.txt"