Rules Haskell

• 1: Bazel targets
• 2: Changelog

1 - Bazel targets

2 - Changelog

• Move changelog rules to bzl/rules/git, improve ansible rules (c94123)
• Move changelog rules to bzl/rules/changelog (4d59d6)
• Move readme rules to bzl/rules/readme (95ea8d)
• Move bzl rules to bzl/rules/bzl (57930e)
• Add changelog for all packages (a6ebf9)
• Add bzl_target_doc (c5636e)
• Update readmes (2c9d62)
• Use subpackages() to build docs instead of writing queries to the tree (ba7b67)
• Add md targets for all md files, add bzl/vars/readmes.bzl (a39482)
• Add al_bzl_library_map macro, add a registry module, add md/docs (920e5b)