Export compile and tokenize in TypeScript definitions

[dhavalpanjwani]

Summary

The compile function:

• Parses a JMESPath expression string into an AST (Abstract Syntax Tree)
• Already exported in JavaScript at src/jmespath.js:2403
• Now also exported in TypeScript definitions at src/jmespath.d.ts:18

What was changed:
Added type definitions for compile and tokenize functions in src/jmespath.d.ts:18-20, so TypeScript users can now properly import and use these functions with type checking.

Usage example:
const jmespath = require('@cloudelements/jmespath');

// Compile an expression to AST
const ast = jmespath.compile('foo.bar');