Basic docker compose support

Added compose config|up|down commands.

Basic determinism mode (disabled by default for now): werf.yaml from git, helm templates from git, disable env go-templates functions

• Refactor code to use local git repo instead of filesystem to read some configs.
• Determinism mode is disabled by default for now, because this is experimental feature which is in progress now.

Refs #2874

Other

• [docs] Added seo meta tags.
• [build] Add envfile report format (--report-format=envfile).

Fixes

• Disable manifests cache ~/.werf/local_cache/manifests for local stages storage. Manifests cache for local stages storage causes problems when built image has been deleted accidentally or unintentionally by docker rmi or docker compose.
• Automatically invalidate corrupted manifests cache json records.
• [cleanup] Fix invalid import metadata found.

Installation

Linux amd64

Darwin amd64

Windows amd64