fiji-compat: move the JavaScriptEvaluator patching to ij-legacy

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
fiji-compat: move the Bio-Formats detection patch to ij-legacy

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
fiji-compat: move the symlink fix for DragAndDrop to ij-legacy

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>