drag: add python deps

Author: bresch

drag_fusion_tuning/readme.md

@@ -13,7 +13,11 @@ Repeat the same maneuver in all directions and several times to obtain a good da
 
 /!\ NOTE: the current state of this script assumes no wind. Some modifications are required to estimate both the wind and the parameters at the same time.
 
-Then, run the script and give it the log file as an argument:
+Then, install the required python packages:
+```
+pip install -r requirements.txt
+```
+and run the script and give it the log file as an argument:
 ```
 python drag_replay.py <logfilename.ulg>
 ```

drag_fusion_tuning/requirements.txt

@@ -0,0 +1,6 @@
+matplotlib==3.5.1
+numpy==1.22.2
+pyulog==0.9.0
+quaternion==3.5.2.post4
+scipy==1.8.0
+sympy==1.10.1