Rename plugins to external

applications/external/flipper_i2ctools/README.md

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+# flipperzero-i2ctools
+
+[Original link](https://github.com/NaejEL/flipperzero-i2ctools)
+Set of i2c tools for Flipper Zero
+
+![Preview](i2ctools.gif)
+
+## Wiring
+
+C0 -> SCL
+
+C1 -> SDA
+
+GND -> GND
+
+>/!\ Target must use 3v3 logic levels. If you not sure use an i2c isolator like ISO1541
+
+## Tools
+
+### Scanner
+
+Look for i2c peripherals adresses
+
+### Sniffer
+
+Spy i2c traffic
+
+### Sender
+
+Send command to i2c peripherals and read result 
+
+## TODO
+
+- [ ] Read more than 2 bytes in sender mode
+- [ ] Add 10-bits adresses support
+- [ ] Test with rate > 100khz
+- [ ] Save records
+- [ ] Play from files
+- [ ] Kicad module
+- [ ] Improve UI
+- [ ] Refactor Event Management Code
+- [ ] Add Documentation
+- [ ] Remove max data size
+- [ ] Remove max frames read size