Provide a "Create Resource" wizard

We need to provide an easy way for users to create resources, similar to "oc create"

The microservice architecture user story typically requires the user to add new imagestreams, buildconfigs to openshift, as seen in https://htmlpreview.github.io/?https://github.com/redhat-helloworld-msa/helloworld-msa/blob/master/readme.html#_create_a_project. Eg.

$ oc create -f https://raw.githubusercontent.com/wildfly-swarm/sti-wildflyswarm/master/1.0/test/imagestream.json
$ oc create -f https://raw.githubusercontent.com/wildfly-swarm/sti-wildflyswarm/master/1.0/test/build-config.json

There should be a Create Resource menu at the Connection and Project levels in the openshift explorer. A wizard would need to provide something like:

• selected project (with link to project management)
• input field + browse workspace / filesystem (similar to local template mgmt)

input field should also accept URLs (which we should also add to the template mgt BTW)

There might be some options from the oc create command to expose to the UI (I haven't checked).

This looks like this new wizard has a lot in common with the local template tab of the new app wizard, so there's probably room for some refactoring here.