[lint] Add support for querying contracts

[turbolent]

Description

Add support for running queries (JQ-based) against analyzed contracts.

For example, the command line option -query '.. | select(.Type? == "CastingExpression" and (.Operation == "as!" or .Operation == "as?") and .SourceType == "AnyStruct") finds all failable casts and force casts from AnyStruct.

The implementation is an extended version of the query feature in the parse tool in Cadence (https://github.com/onflow/cadence/blob/master/cmd/parse/main.go#L48):

• Translate the AST to JSON
• Add type info from the elaboration to the JSON
• Run the JQ query against the JSON

For now, start small and only provide support for casting expressions and force expressions to demonstrate the feature. We can extend support for the other expression types and other node kinds (declarations and statements) in future PRs.

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