Add cfml language id

[KamasamaK]

Fixes #1079

Changes proposed:

• Fix

Things I've done:

• My pull request fixes an issue, I referenced the issue.

Even though the change in the extension was reverted, I've added the cfml language id in preparation for its re-introduction.

[jens1o]

lgtm, thanks

[codecov]

Codecov Report

Merging #1149 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #1149   +/-   ##
======================================
  Coverage     100%    100%           
======================================
  Files          49      49           
  Lines        2384    2384           
  Branches      115     115           
======================================
  Hits         2384    2384

Impacted Files	Coverage Δ
src/icon-manifest/languages.ts	100% <ø> (ø)	⬆️

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