Add support for creating prebuilt files

Add options to the `install()` and `export()` commands to export the
targets we build into files that reference them as prebuilt
libraries with associated usage requirements (compile definitions,
include directories, link libraries).  This will allow CMake-built
projects to be imported into projects using the Android NDK build

Closes: #15562
Status Job ID Name Coverage
passed kwrobot-branch-check