MOVED: Add alternatives for deprecated www/tomcat{8,7,10)

All alternatives are valid alternatives during the deprecation of older
versions and are still active.

Approved by: arrowd (mentor)
Differential Revision: https://reviews.freebsd.org/D40983
MFH: 2023Q3

(cherry picked from commit 2e393e7552f4bf17b877aa77fb50ad5256aff8be)