remove imagery class

Closes #18 (closed)

apps/__init__.py

+# -*- coding: utf-8 -*-
+"""
+This module contains some applications to work with scenes
+"""

apps/drs_spot67_import.py

@@ -4,7 +4,9 @@ This application enables to search existing Spot-6/7 products from different loc
 containing all the `scene.spot.Spot67Scene` instances
 
 ``` command-line
-drs_spot67_import --root_dirs /ortho_drs/2018/ /ortho_drs/2019 --out_pickle collection
+drs_spot67_import
+  --root_dirs /ortho_drs/2018/ /ortho_drs/2019
+  --out_pickle collection
 ```
 
 """

apps/s2_download.py

@@ -5,9 +5,24 @@ This application enables to download all Sentinel-2 images overlapping a referen
 The Theia credential have to be provided.
 
 ``` command-line
-s2_download --refimage raster.tif --theia_cfg ~/cfg.txt --download_dir /tmp --year 2022 --month 12 --day 1
+s2_download
+  --refimage raster.tif
+  --theia_cfg ~/cfg.txt
+  --download_dir /tmp
+  --year 2022 --month 12 --day 1
 ```
 
+With `~/cfg.txt`:
+
+```
+serveur = https://theia.cnes.fr/atdistrib
+resto = resto2
+token_type = text
+login_theia = remi.cresson@irstea.fr
+password_theia = thisisnotmyrealpassword
+```
+
+
 """
 import sys
 import argparse

apps/s2_import.py

 #!/usr/bin/env python3
 """
 This application enables to save a collection of Sentinel-2 image into a pickle object.
+
+```
+s2_import
+  --root_dirs /path/to/S2_3A/T31TEJ /path/to/S2_3A/T31TEK
+  --out_pickle s2_collection
+```
+
 """
 import sys
 import argparse

apps/search.py

 #!/usr/bin/env python3
 """
 This application enables to perform a spatial query over a collection of image, from the specific ROI (vector or raster)
+
+With a vector:
+```
+search.py
+  --pickle_file s2_collection
+  --roi toto.gpkg
+```
+
+With a raster:
+
+```
+search.py
+  --pickle_file s2_collection
+  --roi toto.tif
+```
+
 """
 import sys
 import argparse