Updated swift-ast

Updated to new version of swift-ast dependency

Arrays

Support for arrays

0.1.4 - Package Bug Fix For macOS

Update Package.swift

0.1.3

Update Package for NetworkLinux on Linux only.

0.1.2 - Linux

Create LICENSE

Linux

Compiles on Linux

Removed dependency on Network

Refactored Network-dependent code into its own target so that Song can be used on Linux

readValue for read-only mode

Added readValue to the read-only mode

Read-only

Added preliminary support for read-only replicas for Symphony databases

Added subway sequences

A SubkeySequence is like a ValueSequence, but it uses subkeys.