Basic argument validations

[ishitam8]

Following are the basic validations we can add to start with
(1) trimming a string and validating if its length is greater than ZERO
(2) value greater than zero for parameters like top or skip

@atbagga , @gauravsaralMs Kindly let me know if there are any other validations required.

[geverghe]

Closing this as complete.

[ishitam8]

Reopening this as we need to add validations across all commands and not just team commands