Adding c8y_tk.analytics package and to_numpy, to_series and to_data_frame functions.

Author: chisou

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+* Adding `c8y_tk.analytics` package with `to_numpy`, `to_series` and `to_data_frame` functions to
+  ease incorporating Cumulocity data into standard analytics pipelines.
+
 ## Version 3.2.1
 
 * Some essential fixes and improvements for dealing with measurements and series.