Permutations fix

[romain-grecourt]

• Context updates
  • New context API and implementation (as a tree)
  • New context path syntax (paths are relative by default, absolute paths start with ~)
• Output rendering override (do not override files that already exist)
• Expression updates:
  • Improved equality in expressions
  • Contains supports both string and array operands
  • Support variable tokens that contain '~'
• Value.asText to convert a value back to a raw value
• Fixed archetype validator ref validations
• Permutations
  • new utility to compute simple permutations (Permutations)
  • Re-written archetype permutations (InputPermutations)
• helidon-archetype-maven-plugin updates
  • Use new InputPermutations
  • Add new options: permutationsOnly, permutation, permutationStartIndex, permutationFilters, inputFilters
  • Dump computed permutations in a text file
• Updated Maps utility
• Updated Lists utility
• Temporarily disable Windows pipelines to speed-up the release process