feat(tenantoptions): allow setting tenant option with an explicit empty value

[reubenmiller]

Align to Cumulocity REST API spec where the value is not a required parameter for the following commands:

• c8y tenantoptions create
• c8y tenantoptions update

The above command include the following changes:

• Allow users to specify an empty string via the --value flag
• Allow users to create an option without using the --value flag (e.g. it is no longer required)

Examples

# Create an option
c8y tenantoptions create --category "measurement.series.latestvalue" \
    --key "c8y_Temperature.*" --value "" --dry

# Update an option
c8y tenantoptions update --category "measurement.series.latestvalue" \
    --key "c8y_Temperature.*" --value "" --dry

[haraldmeyer]

The example looks like I would expect it. Initially I wanted to challenge making the "value" parameter optional but checking the API it is indeed not required.

[reubenmiller]

The example looks like I would expect it. Initially I wanted to challenge making the "value" parameter optional but checking the API it is indeed not required.

Yeah that surprised me too. Thanks for checking