SPS30: Add fan action

[martgras]

What does this implement/fix?

• Add action to start fan claning
• Add option to configure autoclean interval

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Other

Related issue or feature (if applicable): fixes

Pull request in esphome-docs with documentation (if applicable): esphome/esphome-docs#2033

Test Environment

• ESP32
• ESP32 IDF
• ESP8266

Example entry for config.yaml:

sensor:
  - platform: sps30
    id: my_sps30
    pm_1_0:
      name: " PM <1µm Weight concentration"
      id: "PM_1_0"
    auto_cleaning_interval: 1200s

button:
  - platform: template
    name: "Start Autoclean"
    on_press:
      - sps30.start_fan_autoclean: my_sps30

Checklist:

• The code change is tested and works locally.
• Tests have been added to verify that the new code works (under tests/ folder).

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

• Documentation added/updated in esphome-docs.