feat!: replace RegExp with RE2

[shuplenkov]

Issue being fixed or feature implemented

To secure user regex we need to
 use re2 module instead of regex in ajv and ajv formats

What was done?

Replaced RegExp with RE2 in Ajv Replaced RegExps in DataContract schema with compatible ones New IncompatibleRe2PatternError for incompatible patterns

How Has This Been Tested?

Unit tests

Breaking Changes

• pattern keyword accept only RE2 compatible regular expressions https://github.com/google/re2/wiki/Syntax
• Document type and properties minimum length is 3 chars

Checklist:

• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have added or updated relevant unit/integration/functional/e2e tests
• [x] I have made corresponding changes to the documentation

For repository code-owners and collaborators only

• [x] I have assigned this pull request to a milestone