Split plugin for finer grained modularity

--HG--
rename : clojuresque-extras/src/main/groovy/clojuresque/ClojureExtrasPlugin.groovy => clojuresque-extras/src/main/groovy/clojuresque/ClojureExtrasDepsPlugin.groovy
rename : clojuresque-extras/src/main/groovy/clojuresque/ClojureExtrasPlugin.groovy => clojuresque-extras/src/main/groovy/clojuresque/ClojureExtrasTaskWatcherPlugin.groovy
rename : clojuresque-extras/src/main/groovy/clojuresque/ClojureExtrasPlugin.groovy => clojuresque-extras/src/main/groovy/clojuresque/ClojureExtrasUberJarPlugin.groovy
rename : clojuresque-extras/src/main/resources/META-INF/gradle-plugins/clojure-extras.properties => clojuresque-extras/src/main/resources/META-INF/gradle-plugins/clojure-extras-deps.properties
rename : clojuresque-extras/src/main/resources/META-INF/gradle-plugins/clojure-extras.properties => clojuresque-extras/src/main/resources/META-INF/gradle-plugins/clojure-extras-taskwatcher.properties
rename : clojuresque-extras/src/main/resources/META-INF/gradle-plugins/clojure-extras.properties => clojuresque-extras/src/main/resources/META-INF/gradle-plugins/clojure-extras-uberjar.properties