comms/flcluster: Update 1.0.4 => 1.1.01

Changelogs:

• https://sourceforge.net/p/fldigi/flcluster/ci/v1.1.01/tree/ChangeLog

• Fix upstream URI for WWW
• Use https:// URI scheme for WWW
• Add LICENSE_FILE
• Pet portclippy(1) and portfmt(1)
• Spellcheck pkg-descr

Approved by: hamradio@ (alven@, yuri@)
Approved by: yuri@ (Mentor)

Differential Revision: https://reviews.freebsd.org/D52897