Add apollo-graphql semgrep rules

[Vasco-jofra]

Adds several semgrep rules that detect misconfigurations in Apollo GraphQL servers version 3 and 4.

[GrosQuildu]

For consistent ids, please do:

• remove from filenames the apollo_graphql prefix
• rename files to use dashes instead of camelCase
• edit ids in yamls to match filenames

For example, for apollo_graphql_schemaDirectives.yaml use schema-directives.yaml with in yaml id schema-directives

[GrosQuildu]

And update readme with new rules, please.