Added setting cover tilt position in scene (#15255)
Added setting cover tilt position in scene (#15255)

## Description:
This feature adds possibly of setting tilt_position in scene for covers.

**Related issue (if applicable):** fixes #<home-assistant issue number goes here>

**Pull request in [home-assistant.github.io](https://github.com/home-assistant/home-assistant.github.io) with documentation (if applicable):** home-assistant/home-assistant.github.io#<home-assistant.github.io PR number goes here>

## Example entry for `configuration.yaml` (if applicable):
```yaml
scene:
  - name: Close Cover Tilt
    entities:
      cover.c_office_north:
        tilt_position: 0

  - name: Open Cover Tilt
    entities:
      cover.c_office_north:
        tilt_position: 100
```

## Checklist:
  - [x] The code change is tested and works locally.
  - [x] Local tests pass with `tox`. **Your PR cannot be merged unless tests pass**

If user exposed functionality or configuration variables are added/changed:
  - [ ] Documentation added/updated in [home-assistant.github.io](https://github.com/home-assistant/home-assistant.github.io)

If the code communicates with devices, web services, or third-party tools:
  - [ ] New dependencies have been added to the `REQUIREMENTS` variable ([example][ex-requir]).
  - [ ] New dependencies are only imported inside functions that use them ([example][ex-import]).
  - [ ] 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.

[ex-requir]: https://github.com/home-assistant/home-assistant/blob/dev/homeassistant/components/keyboard.py#L14
[ex-import]: https://github.com/home-assistant/home-assistant/blob/dev/homeassistant/components/keyboard.py#L54
aequitas/home-assistant,turbokongen/home-assistant,mezz64/home-assistant,home-assistant/home-assistant,rohitranjan1991/home-assistant,mKeRix/home-assistant,robbiet480/home-assistant,Teagan42/home-assistant,joopert/home-assistant,mKeRix/home-assistant,HydrelioxGitHub/home-assistant,titilambert/home-assistant,Teagan42/home-assistant,kennedyshead/home-assistant,Danielhiversen/home-assistant,DavidLP/home-assistant,balloob/home-assistant,postlund/home-assistant,jabesq/home-assistant,pschmitt/home-assistant,jamespcole/home-assistant,GenericStudent/home-assistant,jawilson/home-assistant,titilambert/home-assistant,sander76/home-assistant,nugget/home-assistant,auduny/home-assistant,jamespcole/home-assistant,w1ll1am23/home-assistant,PetePriority/home-assistant,persandstrom/home-assistant,persandstrom/home-assistant,aequitas/home-assistant,auduny/home-assistant,DavidLP/home-assistant,jamespcole/home-assistant,DavidLP/home-assistant,turbokongen/home-assistant,tchellomello/home-assistant,joopert/home-assistant,jnewland/home-assistant,tboyce021/home-assistant,soldag/home-assistant,fbradyirl/home-assistant,HydrelioxGitHub/home-assistant,balloob/home-assistant,leppa/home-assistant,balloob/home-assistant,soldag/home-assistant,MartinHjelmare/home-assistant,mKeRix/home-assistant,tchellomello/home-assistant,auduny/home-assistant,jawilson/home-assistant,fbradyirl/home-assistant,robbiet480/home-assistant,mezz64/home-assistant,w1ll1am23/home-assistant,nugget/home-assistant,FreekingDean/home-assistant,partofthething/home-assistant,nkgilley/home-assistant,home-assistant/home-assistant,leppa/home-assistant,rohitranjan1991/home-assistant,rohitranjan1991/home-assistant,fbradyirl/home-assistant,tinloaf/home-assistant,tboyce1/home-assistant,tboyce021/home-assistant,sdague/home-assistant,FreekingDean/home-assistant,partofthething/home-assistant,aequitas/home-assistant,sander76/home-assistant,Cinntax/home-assistant,jnewland/home-assistant,PetePriority/home-assistant,adrienbrault/home-assistant,PetePriority/home-assistant,jabesq/home-assistant,jnewland/home-assistant,molobrakos/home-assistant,toddeye/home-assistant,HydrelioxGitHub/home-assistant,tboyce1/home-assistant,adrienbrault/home-assistant,aronsky/home-assistant,Cinntax/home-assistant,mKeRix/home-assistant,nkgilley/home-assistant,lukas-hetzenecker/home-assistant,sdague/home-assistant,pschmitt/home-assistant,lukas-hetzenecker/home-assistant,nugget/home-assistant,kennedyshead/home-assistant,qedi-r/home-assistant,jabesq/home-assistant,postlund/home-assistant,MartinHjelmare/home-assistant,tboyce1/home-assistant,aronsky/home-assistant,molobrakos/home-assistant,GenericStudent/home-assistant,tinloaf/home-assistant,molobrakos/home-assistant,tboyce1/home-assistant,MartinHjelmare/home-assistant,persandstrom/home-assistant,Danielhiversen/home-assistant,tinloaf/home-assistant,toddeye/home-assistant,qedi-r/home-assistant