Fix types to allow float32 computations for SAR-C

[mraspaud]

This PR fixes type to makes sure the sensor data is kept in float32s.
It also add the get_bounding_box method and puts it as an attribute in the SwathDefinition.

• Closes #xxxx
• Tests added
• Fully documented
• Add your name to AUTHORS.md if not there already

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.08%. Comparing base (eceedf9) to head (5634073).
Report is 99 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2925      +/-   ##
==========================================
+ Coverage   96.05%   96.08%   +0.03%     
==========================================
  Files         375      375              
  Lines       54607    54615       +8     
==========================================
+ Hits        52451    52478      +27     
+ Misses       2156     2137      -19     

Flag	Coverage Δ
behaviourtests	3.98% <0.00%> (+<0.01%)	⬆️
unittests	96.18% <100.00%> (+0.03%)	⬆️

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[coveralls]

Pull Request Test Coverage Report for Build 11380299578

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

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Details

• 54 of 54 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.002%) to 96.183%

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Totals
Change from base Build 11380133918:	0.002%
Covered Lines:	52714
Relevant Lines:	54806

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💛 - Coveralls

[pnuu]

LGTM, again just one suggestion inline.

[djhoese]

I wouldn't mind some dtype before and after dask compuation, but otherwise looks good. Not a show stopping request. Merge if you disagree. Example:

data_arr_dask = filehandler.get_dataset(...)
data_arr_np = data_arr_dask.compute()
assert data_arr_np.dtype == np.float32
assert data_arr_np.dtype == data_arr_dask.dtype

[mraspaud]

I wouldn't mind some dtype before and after dask compuation, but otherwise looks good. Not a show stopping request. Merge if you disagree. Example:

data_arr_dask = filehandler.get_dataset(...)
data_arr_np = data_arr_dask.compute()
assert data_arr_np.dtype == np.float32
assert data_arr_np.dtype == data_arr_dask.dtype

You mentioned this in another pr already, and I basically agree. It's just that I forget about it. I'll fix it soon.