Setup deps.cljs for google-closure-compiler-js

[mfikes]

When creating a namespace-only JAR (for the purpose of dependencies), the use of google-closure-compiler-js in the planck.bundle namespace trips up cljdoc (and perhaps other tools that attempt to statically analyze things).

Currently, this is worked around by temporarily commenting out the (:require ) before building the JAR. But if we include a deps.cljs, we may be able to work around this, without harming functionality of Planck in any way.

[mfikes]

See

planck/planck-cljs/script/build.clj

Lines 49 to 50 in 687499f

	:foreign-libs [{:file "jscomp.js"
	:provides ["google-closure-compiler-js"]}]

(We might be able to point it at an empty / stub JS file that is included in the JAR instead of the full jscomp.js.)