Add interactive content to the demo scene
Update to Unity Ads 1.0.3 RC for testing
Update .gitignore to exclude Unity Ads package assets
Use OnMouseUpAsButton to avoid click persistence bug
Fix typo in .gitignore
Remove Unity Ads asset package from repo
Add ShowMouseStatus to UnityAdsInfo.cs
Update .gitignore to exclude Standard Assets
Update .gitignore to ignore all except demo assets
Update .gitignore to not ignore UnityAdsDemo.meta
Reorganize project files
Update project settings
Update README.md
Refactor C# version of the demo

Changes:
- Base demos on the UnityAdsHelper script
- Add a helper extension for S2S functionality
- Add GUI scripts to demonstrate functionality
- Refactor button and button motor scripts

To Do:
- Update JavaScript version of UnityAdsHelper
- Write JavaScript version of additional C# scripts
Add HACK comments for pause workaround
Update JS to match C# version changes
Add override methods with default values
Update remaining JS scripts to match C# examples
Set zoneID default value to string.Empty
Update and rename example scenes