function getDefaultContext (options, components = {}) {
  return {
    concreteUtils,
    schemaCache: {},
    computedOptions: options,
    schemaValidationCache: new Map(),
    specComponents: { components: components.components }
  };
}
Provides context that's needed for V2 resolveSchema() interface

@param {object} options - a standard list of options that's globally passed around. Check options.js for more.
@param {object} components - components defined in the OAS spec. These are used to
resolve references while generating params
@returns {object} - Provides default context