Add option to run all models between two dates

[verovaleros]

Description

This PR introduces an additional '--end-date' parameter and adjusts how AIP runs. In sum, this allows anyone to run AIP between two dates, enabling the use of AIP with custom datasets that are dated in the past.

Fixes #68

Type of change

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

• AIP was tested with with multiple options: by default without dates, using run-models, with start date and not end date, with start date in the future and end-date in the past, etc.

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings

Changes to the documentation

• I have made corresponding changes to the documentation