Updated swift tools version to 5.7

• Updated swift tools version to 5.7

Fix SPM warnings

What's Changed

• Fix SPM warnings by @tc-sgupta in #2

Full Changelog: 4.0.2...4.0.3

Added support for swift package manager

What's Changed

• Added swift package manager support by @tc-sgupta in #1

New Contributors

• @tc-sgupta made their first contribution in #1

Full Changelog: 4.0.1...4.0.2