* Clean up remote component
* Don't have device be required in send_command service and method.
* Don't have entity_id be required in the base service schema.
* Don't always add activity in the data dict for a service call.
* Update harmony remote platform according to new service schema.
* Remove not needed properties and attributes from the Kira remote
platform.
* Add send_command method to demo platform.
* Add tests and remove duplicate tests.
* Break out required argument as positional argument
* Added new commands and functionality to the harmony remote component.
-This includes the ability to optionally specify a number of times to repeat a specific command, such as pressing the volume button multiple times.
-Also added a new command that allows you to send multiple commands to the harmony at once, such as sending a set of channel numbers.
-Updated the unit tests for these changes.
* Fix flake8 coding violations
* Remove send_commands command and make send_command handle a single or list of commands
* Remove send_commands tests
* Update itach and kira remotes for new send_command structure. Fix pyharmony version in requirements_all.txt
* Fix incorrect variable name
* Fix a couple minor issues with remote tests
Paulus Schoutsen
Ville Skyttä
Alan Fischer
Martin Hjelmare
everix1992