Move more tests to their respective sub-packages (Azure#18939)

* Move more tests to their respective sub-packages

Enabled various tests that were commented out (there's more to do).

* update code coverage minimum

Author: jhendrixMSFT

eng/config.json

@@ -6,7 +6,7 @@
         },
         {
             "Name": "azblob",
-            "CoverageGoal": 0.00
+            "CoverageGoal": 0.30
         },
         {
             "Name": "azcore",