INA228/INA229, INA238/INA239, INA237 power/energy/charge monitor (I2C, SPI) - Documentation

[latonita]

Description:

Documentation for component supporting INA228, INA229, INA238, INA239, INA237 power monitors.

Related issue (if applicable): fixes https://github.com/esphome/feature-requests/issues/2549

**Pull request in esphome ** esphome/esphome#6138

Checklist:

• [X] I am merging into next because this is new documentation that has a matching pull-request in esphome as linked above.
  or

• [ ] I am merging into current because this is a fix, change and/or adjustment in the current documentation and is not for a new component or feature.

• [X] Link added in /index.rst when creating new documents for new components or cookbook.

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