add yaml 0.1.0-wip

[chinaunicomyangfan]

What type of PR is this?

Add one of the following kinds:

• enhancement/feature
  Update ruc initial yaml file.Including regionUserCount api

What this PR does / why we need it:

add initial yaml

[philipxujin]

ok

[DanXu-ChinaTelecom]

Suggestion of connected User Equipments insteady of switch on users

[DanXu-ChinaTelecom]

Maybe "switch-on users" need to change to "switch on/connected UEs(User Equipments)"

[DanXu-ChinaTelecom]

Does this API just complete one-time query？Do customers have the requirements of periodic query?

[chinaunicomyangfan]

Most scenarios of this interface require periodic or on-demand calls, such as emergency rescue scenarios or outdoor live streaming scenarios, where users need to repeatedly call to grasp real-time information on the number of devices in this area

[gregory1g]

Check chapter "2.5 Reduce telco-specific terminology in API definitions" of https://github.com/camaraproject/Commonalities/blob/main/documentation/API-design-guidelines.md.
"UE" and "MSISDN" are example of telco-specific terminology to be avoided.

[DanXu-ChinaTelecom]

@gregory1g Thanks，I see the issue discussion, there are two choice"Region Device Count" and "Region Sim Count" ,
I Check chapter "2.5 Reduce telco-specific terminology in API definitions" , suggest to use 'Terminal' rather than"UE",
regarding this, we may have three choice"Region Device Count" , "Region Sim Count" and "Region Terminal Count" . Perhaps, we can wait the view from TSC.