Sigma SDK v5.0.10 for Ergo mainnet v5.0.x

This release includes the following key new features:

• new sigmastate-js alpha version 0.2.2 published which contains fixes in secure random generation, typescript declarations of exported classes
• ErgoScript compiler is available from sigmastate-js module (functionally equivalent to JVM version)
• ErgoTree template method implemented to obtain contract bytes with placeholders instead of constants
• CI action set up to run JS test and publish snapshot version of sigmastate-js on npmjs.com

What's Changed

• Fix JS tests and publish script by @arobsn in #886
• Cross-compile ErgoScript compiler to JS by @aslesarenko in #885
• Add Sigma.JS types by @arobsn in #891
• Add JS CI by @arobsn in #892
• Tree template types by @arobsn in #895
• ErgoTree template by @aslesarenko in #894
• Secure random for JS by @aslesarenko in #898

Full Changelog: v5.0.9...v5.0.10