Use OPAL Common to create URIs

[adibaba]

Since November 2019, OPAL Common provides a URI rewriter:
https://github.com/projekt-opal/common/blob/master/src/main/java/org/dice_research/opal/common/utilities/UriRewriter.java
This has to be used to rewrite URIs.

The current implementation of the converter is here:
https://github.com/projekt-opal/converter/blob/f466e2b033bd7bbb8cfa9a34fd5f23eb189145a6/opal-confirm-conversion-service/src/main/java/org/diceresearch/opalconfirmconversionservice/utility/OpalConfirmer.java
in methond generateOpalConfirmedUrl(...)

Both methods create the same hashes, see:
https://github.com/projekt-opal/common/blob/master/src/test/java/org/dice_research/opal/common/UriRewriterDemoTest.java

[adibaba]

Update: Regarding the use of the URI rewriter above, now Catfish can be used to rewrite the URIs of Datasets and Distributions. This should be the way to go. It can be enabled in Catfish configuration: cleaningConfig.setCatalogIdToReplaceUris(CatalogId);