Add a `bazelisk run :tidy` that tidies up the code across all languages

[oharboe]

Description

There are various language specific tools and versions to do tidy: clang-tidy, buildifier, black, tcl tidy, etc.

The idea is to have a single user-facing interface bazelisk run :tidy that tidies up the code.

CI should be able to use this interface too to suggest fixes.

The motiviation is to have a single consistent interface(convert everything to canonical form) and to avoid DependencyInstaller.sh + CI installation + developer installation pains + less to document and explain.

Suggested Solution

No response

Additional Context

No response

[maliberty]

@hzeller @QuantamHD do you have input of how best to implement this?

[maliberty]

For c++ #8586