A practical Tangled CLI nnabeyang.tngl.sh/swift-tangled

chore: bump version to 0.7.0 #217

Merged nnabeyang.tngl.sh
targeting main
Merged opened by and assigned to nnabeyang.tngl.sh
targeting main

Bump the SwiftTangled and tng version from 0.6.1 to 0.7.0 and update the corresponding version assertions.

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