Add drawings for aortic diseases

[SterArcher]

I love what this project is doing, great work! Please add drawings icons for

• [ ] aortic dissection
• [ ] aortic intramural hematoma
• [ ] penetrative Atherosclerotic ulcer
• [ ] Stanford classification of aortic dissection

Thank you and keep up the good work!

[SterArcher]

Something like this.

And stanford classification here

[Kekananen]

@SterArcher I'll draw these and donate them to the project. Always love open-source projects like this, just give me a few weeks to create them as I'll have some free time coming up.