Add babel-plugin-probe-gl module

[Pessimistress]

See README.md

[coveralls]

Coverage increased (+10.8%) to 51.852% when pulling 74a6efb91cb1e231631818e688ef4aba391f069a on x/babel-plugin into 6fa9454648e4e89b9ed2619875964cdad71bbea7 on master.

[CLAassistant]

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