fix: replace deprecated --terragrunt-hclfmt-file flag (gruntwork-io#125)

Fix exclude regular expressions (gruntwork-io#117)

* Fix exclude regular expressions

the current expressions look like a typo? They require one or more literal '.'s, followed by one of any symbol, then "terraform". I reasoned that the `.+` at the start was entirely superfluous and just check for the `.terraform/`

* delete extra $'s

add --kube-version opt to helm lint hook (gruntwork-io#116)

Co-authored-by: James Kwon <[email protected]>

Feature/add git root keyword 102 (gruntwork-io#103)

* feature: add a git root keyword for `--config` argument

When operating in a monorepo the new functionality of tflint (`--chdir`) breaks config file path by changing the current working directory when tflint runs.  This commit patches this gap by allowing a user to provide __GIT_ROOT__ or populate a environment variable with a custom string and when the `--config` argument is is found it replaces that keyword with the repository root (pwd in the case of pre-commit).

* feature: add documentation

tflint has deprecated the 'tflint FILE/DIR' syntax (gruntwork-io#95)

* tflint has deprecated the 'tflint FILE/DIR' syntax

* Quote parameters to dirname/basename

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Co-authored-by: Jeremy Yoder <[email protected]>

Add support to use args in tflint (gruntwork-io#92)

Add a golangci-lint hook (gruntwork-io#93)

Add sentinel fmt hook (gruntwork-io#89)

Ignore hash links (gruntwork-io#86)

Initialise tflint to install plugins (gruntwork-io#62)