Add hoplon and javelin as a plugin (#73)

* Hoplon and Javelin plugins

* Only Hoplon plugin

* Bump promesa

* Update sci context access/update

* Bump sci

plugins/hoplon/src/scittle_plugin.edn

@@ -0,0 +1,13 @@
+[{:name scittle/hoplon
+  :namespaces [javelin.core
+               hoplon.core
+               hoplon.dom]
+  :js "./scittle.hoplon.js"
+  :shadow-config
+  {:modules
+   {:scittle.hoplon {:init-fn scittle.hoplon/init
+                     :depends-on #{:scittle :scittle.javelin}
+                     :entries [hoplon.core hoplon.dom]}
+    :scittle.javelin {:init-fn scittle.javelin/init
+                      :depends-on #{:scittle}
+                      :entries [javelin.core]}}}}]