Added option to select photoblack cartridge

[ThaStealth]

Description:

Added the option to add photo black cartridge as a setting. Also correct the spelling of Inklevel -> Ink level

Pull request in home-assistant.io with documentation (if applicable): home-assistant/home-assistant.io#9371

Example entry for configuration.yaml (if applicable):

   - platform: epsonworkforce
     host: IP_ADDRESS
     monitored_conditions:
     - black     
     - photoblack
     - yellow
     - magenta
     - cyan
     - clean      

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.

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 (example).
• New dependencies have been added to requirements in the manifest (example).
• New dependencies are only imported inside functions that use them (example).
• New or updated dependencies have been added to requirements_all.txt by running script/gen_requirements_all.py.
• New files were added to .coveragerc.

If the code does not interact with devices:

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

[MartinHjelmare]

Please add a paragraph in the PR description about the breaking change for the release notes.

[MartinHjelmare]

This is a breaking change, since the first item will be used for entity name which will be used for entity_id.