Migrate to Scala 3.3.1 LTS

[Mark1626]

Summary

1. Bumped up version of scalatest, fastparse, sbtassembly, scalafmt
2. Used the compiler opt -new-syntax along with -rewrite to format the code after a successful compile
3. Changes made in source getClass.getResourceAsStream("/version.properties") -> scala.io.Source.fromResource("version.properties")
4. The compiler noted that in certain cases where for an Option[T] type only Some[T] was consumed and None was ignored. This has been temporarily marked with @unchecked
5. Fatjar construction had a considerable change as sbtassembly went up from 0.14.9 to 2.1.5 in build.sbt
6. The Dotty Compiler cleared minor issues in pattern matching that were marked eg)Parser.scala L418, calyx/Backend.scala
7. Main function still follows Scala 2 pattern rather than a Scala 3 @main approach
8. Tested with the existing unit tests and functional tests
9. The documentation is out of date, should I do this in this PR itself.

Note: Most of this was just a straightforward version update except for point 4 and 5

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Let me know your feedback, I'll work on them.

[rachitnigam]

Freaking awesome!! LGTM! Merge it!

[Mark1626]

Any comments on point 4

[rachitnigam]

How about (once this is merged), opening a new PR immediately where the @unchecked is remove so we can stare at the error message and see which places are obviously incorrect and which places can be handled directly

[Mark1626]

Sounds good. Do you want me to merge it to master?

[rachitnigam]

Yup! You should have access to hit the green button now!

[rachitnigam]

I generally prefer squash commits BTW