[FIX] Ability to set all Databricks cluster types using a class/enum

[zarembat]

Is your feature request related to a problem? Please describe.
Currently compute clusters are deployed as single-user clusters by default. This can be overwritten by setting the data_security_mode attribute for the Cluster object but the DataSecurityMode class which is used for that only has one property: SINGLE_USER. In order to configure a different cluster type one needs to know which value to hard code (eg. "USER_ISOLATION" for a Shared cluster) which is not convenient.

Cloud Information

• AWS
• Azure
• GCP
• Other

Describe the solution you'd like
Add other attributes to the DataSecurityMode class so that it can be used to configure all cluster types. For example:

@dataclass(frozen=True)
class DataSecurityMode:
    SINGLE_USER: str = "SINGLE_USER"
    SHARED: str = "USER_ISOLATION"
    NO_ISOLATION_SHARED: str = "XXX"

Describe alternatives you've considered
One can simply hard code the right value (like "USER_ISOLATION") directly when instantiating a Cluster.

[riccamini]

Patch release 1.3