init upload + readme + error handling

ReadMe.md

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+# Upload Tec Script
+
+This Code is for uploading the [TECware](https://gitlab.psi.ch/coldbox/tec/tecware) to the TEC in the Coldbox environemen via the CAN Bus.
+
+## Installation
+
+- Please install python 3.6 on you PC / Raspberry PI
+- then go to you terminal, jump to this directory
+- go into the python directory: `cd python`
+- install python library: `python setup.py install`
+- then go back to the home directory
+- copy the srec file from the [TECware](https://gitlab.psi.ch/coldbox/tec/tecware) reop to this directory
+- (If you are on windows, please change you CAN Interface in the uploadtec.py script) [here](https://www.feaser.com/en/blog/2018/07/libopenblt-python-bindings-tutorial/) some infos
+
+## Usage
+
+to use this script the libopenblt.(so on linux)(dll on windows) library should be in the same directory.
+
+on linux first reset the canbus with `./resetCAN.sh`.
+
+the use the script to upload the code:
+`python uploadtec.py [all/1-8] [filename]`
+
+if the upload gets interrupted, the should restart the upload because th code on the TEC is now corrupted.
+The Bootloader itself should not corrupt itself, so everything is save. These are 2 completly different and independent programms.