Draft: Credentials encryption

[CGuichard]

Closes #60

[github-actions[bot]]

Unit Test Results

    2 files  ±  0      2 suites  ±0   13m 34s :stopwatch: +37s 265 tests +31  263 :heavy_check_mark: +31  2 :zzz: ±0  0 :x: ±0  530 runs  +62  526 :heavy_check_mark: +62  4 :zzz: ±0  0 :x: ±0 

Results for commit 09b741de. ± Comparison against base commit c6dfc7eb.

:recycle: This comment has been updated with latest results.

[github-actions[bot]]

File	Coverage
All files	79%	:white_check_mark:
eodag/cli.py	78%	:white_check_mark:
eodag/config.py	91%	:white_check_mark:
eodag/api/core.py	87%	:white_check_mark:
tests/units/test_security.py	86%	:white_check_mark:
tests/units/test_utils.py	95%	:white_check_mark:

File	Coverage
All files	79%	:white_check_mark:
eodag/cli.py	78%	:white_check_mark:
eodag/config.py	91%	:white_check_mark:
eodag/api/core.py	87%	:white_check_mark:
tests/units/test_security.py	86%	:white_check_mark:
tests/units/test_utils.py	95%	:white_check_mark:
eodag/cli.py	78%	:white_check_mark:
eodag/config.py	90%	:white_check_mark:
eodag/api/core.py	87%	:white_check_mark:
tests/units/test_security.py	86%	:white_check_mark:
tests/units/test_utils.py	95%	:white_check_mark:

Minimum allowed coverage is 70%

Generated by :monkey: cobertura-action against 09b741de62d955a0b491328e4e28ee0162b283c7