Add tslib bsd-0 license

[hsubox76]

Tslib is bundled into our code in some of the CDN packages and it has a BSD-0-Clause license. Import into google3 requires this license be reflected in the top-level LICENSE file.

[changeset-bot]

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Latest commit: d851018

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (f25b9e5) and merge commit (64087ff).

Test Logs

• Base (f25b9e5): https://github.com/firebase/firebase-js-sdk/actions/runs/8931676611
• Merge (64087ff): https://github.com/firebase/firebase-js-sdk/actions/runs/8972971016

1. https://storage.googleapis.com/firebase-sdk-metric-reports/tJUmN6edk6.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (f25b9e5) and merge commit (64087ff).

Test Logs

• Base (f25b9e5): https://github.com/firebase/firebase-js-sdk/actions/runs/8931676611
• Merge (64087ff): https://github.com/firebase/firebase-js-sdk/actions/runs/8972971016

1. https://storage.googleapis.com/firebase-sdk-metric-reports/FhaS0pfgPg.html