add fuzix code

Code/README.md

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+# Code 
+Here are all the patch codes of picocalc's factory program
+
+* PicoCalc_Fuzix_v1.0
+* PicoCalc_MP3Player_v0.5
+* PicoCalc_NES_v1.0
+* PicoCalc_PicoMite_v1.0
+* PicoCalc_uLisp_v1.0
+
+
+# Preparation
+
+See how to setup pico sdk development   
+
+https://github.com/clockworkpi/PicoCalc/wiki/Setting-Up-the-Pico-SDK-on-Linux-for-Pico-Development
+
+
+## How to compile FUZIX for picocalc
+```bash
+git clone https://github.com/EtchedPixels/FUZIX.git
+cd FUZIX
+
+git reset --hard f0d56efd5ba70211c4c2d0b084a154fcff30ac5a
+git apply fuzix.patch
+
+export PICO_SDK_PATH=/to/where/your/pico/sdk/is
+cd Kernel/platform/platform-rpipico
+make world
+
+```
+
+now copy `build/fuzix.uf2` into picocalc like every pico device 
+
+
+
+