All of our native dependencies need to also be updated to support musl instead of glibc.

• Support Alpine linux libuv-package#23
• Need e_sqlite3 (et al) builds for Alpine Linux ericsink/SQLitePCL.raw#192

We also need to generate an aspnetcore-runtime tarball for Alpine.

• Upgrade SQLitePclRaw
• Upgrade libuv Deferred until 2.2. See Support Alpine linux libuv-package#23
• Add functional tests for Alpine
• Update CI to produce an Alpine configuration
• Update dotnet/CLI to consume