Mobile bindings v0.1.0

Mobile bindings release

• mintlayer-wallet-bindings-0.1.0.aar — Android library
  (arm64-v8a, armeabi-v7a, x86_64), generated Kotlin under
  org.mintlayer.wallet.bindings
• MintlayerWalletBindings.xcframework.zip — iOS framework
  (arm64 device, arm64 simulator); consumed by the root
  Package.swift (checksum pinned in PR #7)
• SHA256SUMS — SHA-256 checksums for every artifact
• MintlayerWalletBindings.swift — generated Swift wrapper
  (also in-repo at SwiftSources/)

Byte-parity with @mintlayer/wasm-lib 1.4.0 is verified by the
differential suite on the tagged commit (run 43435024739, 3,404 cases).
See docs/mobile-bindings.md for usage from Kotlin and Swift.