deployhostedtarget and deploynodeapp should allow for exclude/include support

[whitlockjc]

When uploading a Hosted Target or Node.js application, not all of the local resources need to be included in the proxy bundle. For example, test files do not need to be uploaded. It would be slick if apigeetool had a way to exclude/include files based on name/pattern. This could be done via flags and/or NPM/VCS ignore/include files.