Add Yashima Climate component docs (#275)

* new yashima climate component docs

* updated main index

components/climate/yashima.rst

@@ -0,0 +1,52 @@
+Yashima Remote Climate
+======================
+
+.. seo::
+    :description: Controls a Yashima compatible Climate via IR
+    :image: air-conditioner.png
+
+The ``yashima`` climate platform allows you to control a Yashima compatible AC unit by sending IR signals
+as your remote unit would do.
+
+This component requires that you have setup a :doc:`/components/remote_transmitter`.
+
+Due to the unidirectional nature of IR remote controllers, this component cannot determine the
+actual state of the device, and will assume the state of the device is the latest state requested.
+
+.. figure:: images/climate-ui.png
+    :align: center
+    :width: 60.0%
+
+.. code-block:: yaml
+
+    # Example configuration entry
+    remote_transmitter:
+      pin: GPIO32
+      carrier_duty_percent: 50%
+
+    climate:
+      - platform: yashima
+        name: "Living Room AC"
+
+Configuration variables:
+------------------------
+
+- **name** (**Required**, string): The name for the climate.
+- **supports_cool** (*Optional*, boolean): Enables setting cool mode for this climate device. Defaults to ``True``.
+- **supports_heat** (*Optional*, boolean): Enables setting cool heat for this climate device. Defaults to ``True``.
+- **sensor** (*Optional*, :ref:`config-id`): The sensor that is used to measure the ambient
+  temperature. This is only for reporting the current temperature in the frontend.
+- All other options from :ref:`Climate <config-climate>`.
+
+Advanced options:
+
+- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
+- **transmitter_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the remote transmitter.
+
+See Also
+--------
+
+- :doc:`/components/climate/index`
+- :doc:`/components/remote_transmitter`
+- :apiref:`yashima/yashima.h`
+- :ghedit:`Edit`

index.rst

@@ -269,6 +269,7 @@ Climate Components
     Custom Climate, components/climate/custom, language-cpp.svg
     Coolix IR Remote, components/climate/coolix, air-conditioner.svg
     Tcl112 IR Remote, components/climate/tcl112, air-conditioner.svg
+    Yashima IR Remote, components/climate/yashima, air-conditioner.svg
 
 Misc Components
 ---------------