How to exclude 3D WebView from a build?

Developers sometimes wish to omit 3D WebView from some of their builds. For example, a developer might use a single Unity project to build multiple apps and wish to exclude 3D WebView's native libraries from some builds. To completely exclude 3D WebView from a build, simply rename the "Assets/Vuplex/WebView" directory to "Assets/Vuplex/WebView~". Appending "~" to the folder name causes Unity to ignore it as a hidden folder. If you wish, you can even automate adding and removing "~" from the folder name using a custom pre-build script.