v1.0.20-alpha

Added

• aiken-project: The plutus.json blueprint now contains a compiler.name
  and compiler.version fields.
• aiken-project: Added compiler and system information to panic error report.
• aiken-lsp: Added quickfix suggestions for unknown variables, modules and
  constructors.

Changed

• aiken-lang: Added validator specific error when validator returns false
• aiken-lang: Running a multi-validator with traces on will let you know
  which validator function is running
• aiken-lang: Multi-validator with traces will give a better error when the
  'spend' redeemer is not properly wrapped with a constr
• aiken-lang: Code gen traces are referenced instead of being inlined
  leading to smaller validators
  • aiken-lang: Support doc comments for function args and validator params

Fixed

• aiken-lang: improved error messages for a |> b(x).
• uplc: Fixed cost model issue when using div, quot, rem, mod.
• aiken-lsp: Improved hovering suggestions and type annotations.
• aiken-lang: incorrect 'unused::constructor

@KtorZ @MicroProofs @waalge @rvcas