function isAncestorPackage( candidate, descendant ) {
	return startsWith( descendant, candidate + '/' );
}
Checks whether a package is an ancestor of another package.

@private
@param {string} candidate - potential ancestor package (e.g., `@stdlib/string/tools`)
@param {string} descendant - descendant package (e.g., `@stdlib/string/tools/grapheme-cluster-break`)
@returns {boolean} boolean indicating whether a package is an ancestor of another package