add adlfs for azure to access data in cloud

see pandas-dev#39164 for discussion.  0.6.0 might be an overly restrictive version, but it is compatible

Author: JMBurley

doc/source/getting_started/install.rst

@@ -400,6 +400,7 @@ fsspec                    0.7.4              Handling files aside from simple lo
 gcsfs                     0.6.0              Google Cloud Storage access
 pandas-gbq                0.14.0             Google Big Query access
 s3fs                      0.4.0              Amazon S3 access
+adlfs                     0.6.0              Microsoft Azure access
 ========================= ================== =============================================================
 
 Clipboard