This recreates the Zooming Image Tool template for the HTML block. It
does it in such a way that doesn't depend on any external resources:
both the loupe code and sample image are inlined.
Some benefits to this version are:
* We can now maintain the loupe javascript code properly
* Because the javascript is included in the contents of the block
itself, the course author can customize it as needed
* As opposed to the previous iteration, the magnified image URL is now
optional: if it's not present, the regular image will be used for
magnification
* There can now be two or more instances of the tool in the same unit.
This also removes some CSS left over from the previous iteration.
The Zooming Image Tool does not load properly, currently, and even if it
did, relying on an external Javascript to function across releases is
not something we can support. Thus, we remove it from the list of HTML
block templates until such time as a more robust solution is found.
- Moving xmodule folder to root as we're dissolving sub-projects of common folder in edx-platform
- More info: https://openedx.atlassian.net/browse/BOM-2579
- -e common/lib/xmodule has been removed from the requirements as xmodule has itself become the part of edx-platform and not being installed through requirements
- The test files common/lib/xmodule/test_files/ have been removed as they are not being used anymore
