[FEATURE REQUEST] ADC login & switch partition modules

[pkodzis]

Is your feature request related to a problem? Please describe.
I need module that will login and return the nitro_auth_token
Then I need module that will switch to the partiton (without ANY attempts of create/delete/modify) the partition itself. So existing nspartiton module that relay on the "state" is not for me.

Additional context
Add any other context or screenshots about the feature request here.

i maintain ADC with huge manually created config on partitions. Rework this into playbook for full coverage is not an option. So I cannot "touch" exisiting partitoin with exsitign "nspartition" module (finding this as too risky from my perspective). So instead of I reworked it so it only switch the partition and does absolutely nothing else. Attachign working drafts of these modules. By using them I can safely:
-login
-then swithc to expected partitition
-then deploy objects on this partition

here are draft of these modules: https://github.com/pkodzis/test1

[pkodzis]

covered in 2.3.0/ thank you so much! :)