Support for resources in repo.xml

[JoernT]

support for resources directories in repo.xml, if storing html fails try as binary in deployment.

repo.xml sample:

<?xml version="1.0" encoding="UTF-8"?>
<meta xmlns="http://exist-db.org/xquery/repo">
    <description>eXistdb some app</description>
    <author>eXist Solutions</author>
    <website/>
    <status>alpha</status>
    <license>BSD-2-Clause</license>
    <copyright>true</copyright>
    <type>application</type>
    <target>someapp</target>
    <resources path="bower_components" type="binary"/>
    <resources path="app/elements" type="binary"/>
</meta>

[dizzzz]

anyone?

[wolfgangmm]

This PR depends on some other changes by @zwobit. It won't work without them, so I'm waiting for his PR.

[zwobit]

Replaced by: #836