feat: create yaml schema validation command

feat: support DATREE_SCHEMA_VERSION env var

Co-authored-by: Tzlil Swimmer <tzlilswimmer@Tzlils-MacBook-Pro.local>

* on messgaing warning - check if k8s failed due to helm file (Chart/chart/Values/values.ym?al)
added new color for that - Checking with Adi what she thinks

* new line

* rename new function

* change the logic - add warning extra messages

* update message text

* use array and goimports

* fix fmt test
Co-authored-by: Tzlil Swimmer <tzlilswimmer@Tzlils-MacBook-Pro.local>
Co-authored-by: Alex Fedin <alex@datree.io>

feat: change test command to exit(2) when miconfigurations were found

feat: change test command to exit with code 2 when miconfigurations were found. This is important for the kubectl plugin

* fix: add examples for commands

* made minor changes
Co-authored-by: Yishay Mendelsohn <yishay@datree.io>

fix: revert go yaml package

docs: update CODEOWNERS for examples dir

fix: update travis osx image to 13.2

fix: uncomment install ex

docs: add default PaC yaml

fix: support missing installs directories

fix: make `datree test` fail when all manifests are empty

* fix: remove m1 case from install script

fix: add binary target for m1 arm64