Fix / Enable to create a relationship based on binary ID column

A Basic function like relationship does not work if your tables are linked by binary columns. This eliminates the possibility to easily use the product without tampering with the source data (engineering it for each and every table - Which can't even be done during the import process in power bi). If one needs to create new identifiers at the source for every possible table just because power BI can't let you create a relationship on a binary column, the product becomes useless. it's a shame, such a nice product.