Align Cadet Grade Abbreviations with CAP Style Guide

[dtrick-CAP]

Specifically:

• Cadet Second Lieutenant should display as "C/2d Lt"
• Cadet First Lieutenant should display as "C/1st Lt"
• Cadet Lieutenant Colonel should display as "C/Lt Col"

Source for branding: https://civilairpatrol.frontify.com/d/crhrf1Aw1Ci9/style-guide#/styles/grade-rank-abbreviations-punctuation

[grioux-neo]

CAPWATCH data indicate cadet grades out of alignment with CAP style guide. Event Manager displays CAPWATCH data. Helpdesk ticket #87583