Windows terminal colors, Latin-1, and more

What's Changed

Key feature: output colorization on Windows thanks to @tiesmaster:

• Enable ANSI escape-sequence processing on Windows by @tiesmaster in #1045
• Enable output colorization on Windows by default by @johnkerl in #1051

Support for Latin-1:

• DSL functions and verbs for UTF-8 <-> Latin-1 by @johnkerl in #997

Features:

• Re-use whitespace regexp in clean_whitespace by @johnkerl in #994
• Add line/column info for DSL runtime non-parse failures by @johnkerl in #998
• Allow x ** - y and x ** + y in the DSL grammar by @johnkerl in #1021
• Let + be an alias for then by @johnkerl in #1049

Docs:

• helm/kubectl examples in webdocs by @johnkerl in #1005

Bugfixes:

• Accept + in exponent of scientific-notation floating-point DSL literals by @johnkerl in #1020
• Fix ASCII vs UTF-8 in TSV writer by @johnkerl in #1023
• Avoid panic when the command line ends in 'then' by @johnkerl in #1033
• Fix panic on 'mlr sort -n' by @johnkerl in #1004
• Fix issue 1037 by @johnkerl in #1047
• Fix issue 1032 by @johnkerl in #1048

Dependencies:

• Bump actions/cache from 2 to 3 by @dependabot in #1000
• Bump github.com/stretchr/testify from 1.7.1 to 1.7.2 by @dependabot in #1034
• Bump github.com/stretchr/testify from 1.7.2 to 1.7.3 by @dependabot in #1038
• Bump github.com/stretchr/testify from 1.7.3 to 1.7.4 by @dependabot in #1040
• Bump github.com/stretchr/testify from 1.7.4 to 1.7.5 by @dependabot in #1042
• Bump github.com/stretchr/testify from 1.7.5 to 1.8.0 by @dependabot in #1044
• Bump actions/upload-artifact from 2 to 3 by @dependabot in #1010
• Bump actions/setup-go from 2 to 3 by @dependabot in #1009
• Bump github.com/lestrrat-go/strftime from 1.0.5 to 1.0.6 by @dependabot in #1012
• Bump github/codeql-action from 1 to 2 by @dependabot in #1015
• Bump goreleaser/goreleaser-action from 2 to 3 by @dependabot in #1027

New Contributors

• @tiesmaster made their first contribution in #1045

Full Changelog: v6.2.0...v6.3.0