Add support for racked doors in Pelicun

[zsarnoczay]

Problem

• Vanilla FEMA P-58 does not have racked door fragilities.

Proposed solution

• Discuss how to handle this to allow Pelicun-based simulations to provide such data to ATC 138.

Permalink to context in #8: https://github.com/OpenPBEE/Functional-Recovery-Python/pull/8/changes#diff-09ddbe9b47cd801ac2851f14da73cf459f44c2cd8c6d3f2a557541ff2a6bc4b2R704