add n bands support & rf implementation

[namsellem]

Summary

2 functions implement n bands support in watermask.py : rf_prediction() & build_samples
Also modified bands automatic detection to support n bands

Test

Name                                        Stmts   Miss  Cover
---------------------------------------------------------------
slurp/__init__.py                               7      2    71%
slurp/eomultiprocessing/__init__.py             0      0   100%
slurp/eomultiprocessing/slurp_executor.py     268    186    31%
slurp/eomultiprocessing/slurp_manager.py       47     16    66%
slurp/eomultiprocessing/utils.py               52     17    67%
slurp/masks/__init__.py                         7      0   100%
slurp/masks/shadowmask.py                     137      7    95%
slurp/masks/stack_masks.py                    223     13    94%
slurp/masks/urbanmask.py                      265     30    89%
slurp/masks/vegetationmask.py                 399     22    94%
slurp/masks/watermask.py                      360     30    92%
slurp/post_process/__init__.py                  0      0   100%
slurp/post_process/morphology.py               32      4    88%
slurp/prepare/__init__.py                       7      0   100%
slurp/prepare/analyse_glcm.py                  73      9    88%
slurp/prepare/aux_files.py                      7      0   100%
slurp/prepare/geometry.py                     110      2    98%
slurp/prepare/prepare.py                      227     28    88%
slurp/prepare/primitives.py                    29      0   100%
slurp/prepare/validity.py                       7      1    86%
slurp/tools/__init__.py                         7      0   100%
slurp/tools/constant.py                         7      0   100%
slurp/tools/io_utils.py                        30      7    77%
slurp/tools/misc.py                            26     26     0%
slurp/tools/mylogger.py                        27     14    48%
slurp/tools/profile_utils.py                   78     14    82%
slurp/tools/pydantic_class.py                 145      0   100%
slurp/tools/random_forest_utils.py             23      0   100%
slurp/tools/utils.py                           56      5    91%
---------------------------------------------------------------
TOTAL                                        2656    433    84%

[namsellem]

Reference image

N bands on Dubaï

INFO: Feature ranking:
INFO: B4         (0.247046) (std=0.391840)
INFO: B1         (0.190980) (std=0.350506)
INFO: B5         (0.161899) (std=0.329025)
INFO: NDVI       (0.146092) (std=0.313397)
INFO: NDWI       (0.134567) (std=0.304811)
INFO: B3         (0.057508) (std=0.180982)
INFO: B2         (0.055862) (std=0.185528)
INFO: B6         (0.006045) (std=0.003558)

N bands on Dubaï with pekel

INFO: Feature ranking:
INFO: .../out/pekel.tif (0.378963) (std=0.416608)
INFO: B5         (0.208557) (std=0.372097)
INFO: B4         (0.160905) (std=0.340895)
INFO: NDWI       (0.134090) (std=0.308699)
INFO: B1         (0.103898) (std=0.270486)
INFO: NDVI       (0.010638) (std=0.082701)
INFO: B3         (0.001353) (std=0.003181)
INFO: B2         (0.001065) (std=0.003147)
INFO: B6         (0.000532) (std=0.000926)