Create Changelog.md (#38)

Author: lukasmatusiewicz

Changelog.md

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+# Changelog
+
+### v1.0.1 - 25 Mar 2022
+
+* Merge sign request for multiple WebAuthn tokens (#31)
+* Add authentication status to PIResponse (#32)
+* Add error to responses (#27)
+
+### v1.0.0 - 12 Oct 2021
+
+* Add U2F support (#25)
+
+### v0.3 - 26 Apr 2021
+
+* Using async requests (#22)
+
+### v0.2 - 05 Feb 2021
+
+* Add WebAuthn support (#18)
+* Add trigger challenge
+* Add token enrollment
+* Add push token support
+
+### v0.1 - 18 Sep 2020
+
+* First version
+* Supports basic OTP token