Markdown filter: support UI for codefinder

[Chase Tingley]

The Markdown filter uses the inline code finder to clean up some edge cases and allow for customization. However, the filter params have no UI implementation, so the configuration has to be done by hand. I think there's a standard Inline Code Finder UI that I can just plug in here...

[YvesS]

Yes, the class InlineCodeFinderPanel in net.sf.okapi.common.ui.filters (in the okapi-core-ui project) can help.

Meanwhile, the rules can be edited using Rainbow's "Tools > Edit Code Finder Rules" and using the Copy to/from Clipboard buttons.

[Chase Tingley]

Fix issue #604: Add UI for Markdown filter

→ <<cset 59bcfd1a7b2c>>