Update LightMeter

applications/external/lightmeter/docs/README.md

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+## Lightmeter app for photography
+
+An application that suggests settings for your manual camera based on the reading of the ambient light sensor. Can also be used in a pure lux meter mode.
+
+## Supported sensors
+
+- BH1750
+- MAX44009
+
+## Wiring
+
+| Sensor | Flipper Zero |
+| ------ | ------------ |
+| VCC    | 3.3V         |
+| GND    | GND          |
+| SCL    | C0           |
+| SDA    | C1           |

applications/external/lightmeter/docs/changelog.md

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+## v1.2
+
+* Lux only screen now has statistics
+* Settings are now stored on SD card
+* You can choose the resolution (BH1750 only) and address for sensor
+
+(thanks to @danielskowronski for contributing to this update)
+
+## v1.1
+
+Added support for MAX44009 sensor (thanks to @wosk)
+
+## v1.0
+
+Initial release for Flipper Application Catalog