[Snyk] Upgrade tslib from 1.9.3 to 1.10.0

[snyk-bot]

Snyk has created this PR to upgrade tslib from 1.9.3 to 1.10.0.

• The recommended version is 1 version ahead of your current version.
• The recommended version was released 3 months ago, on 2019-06-10.

Release notes

• 1.10.0 - 2019-06-10

  This release fixes enumerability in object rest's __rest helper (see details here) and adds a new __spreadArrays helper (done as part of a change for more accurate array spreads).

• 1.9.3 - 2018-06-22

  This release changes the __extends and __assign helper functions so that certain tools may more easily analyze them. Details are available on microsoft/TypeScript#24244.

from tslib GitHub Release Notes

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