Cluster command arguments for issue_zigbee_cluster_command service.

[Adminiuga]

Description:

Allow specification of cluster command arguments for zha.issue_zigbee_cluster_command service.
For example a move_to_level_with_on_off command on Level cluster of a light:

ieee: '7c:b0:3e:aa:00:ab:cd:ef'
endpoint_id: 3
cluster_id: 8
cluster_type: in
command: 0
command_type: server
args:
  - 254
  - 20

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly. Update and include derived files by running python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt by running python3 -m script.gen_requirements_all.
• Untested files have been added to .coveragerc.

If the code does not interact with devices:

• Tests have been added to verify that the new code works.

[probot-home-assistant]

Hey there @dmulcahey, @Adminiuga, mind taking a look at this pull request as its been labeled with a integration (zha) you are listed as a codeowner for? Thanks!

[dmulcahey]

LGTM.