Support multiple phases for modal model

[boulderdaze]

This PR

• Supports the multiple phases in a single mode for modal aerosol model.
• Closes Support multiple phases per mode in modal model type #115

Current:

{
  "name": "accumulation",
  "geometric mean diameter [m]": 1.1e-7,
  "geometric standard deviation": 1.8,
  "phase": "aqueous"
}

Updated:

{
  "name": "accumulation",
  "geometric mean diameter [m]": 1.1e-7,
  "geometric standard deviation": 1.8,
  "phase": ["aqueous", "organic"]
}

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.95%. Comparing base (149c200) to head (2a07d1d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #118   +/-   ##
=======================================
  Coverage   86.95%   86.95%           
=======================================
  Files           3        3           
  Lines          23       23           
=======================================
  Hits           20       20           
  Misses          3        3           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.