fix(prt): skip release times falling outside tdis

[wpbonelli]

Mentioned in the discussion in #2125, skip release times before simulation start, and after simulation end if no extended tracking.

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Checklist of items for pull request

• Replaced section above with description of pull request
• Referenced issue or pull request Wrong time unit usage in PRP package #2125
• Formatted new and modified Fortran source files with fprettify
• Updated develop.tex with a plain-language description of the bug fix, change, feature; required for changes that may affect users
• Removed checklist items not relevant to this pull request

[aprovost-usgs]

Nice job. Just one suggested tweak to the wording.