From v1 to v2

BREAKING CHANGES:

Module system
- v1: CommonJS
- v2: ESM
Runtime and Test Framework support
- v1: Node + Jest only.
- v2: Node (node:test, jest, vitest), Bun, Denon
Rename header X-JFMC-Cache to X-FMC-Cache

Constructor has a new conventin for its name and arguments.

- import createCachingMock from "fetch-mock-cache";
+ import fetchCache from "fetch-mock-cache";

- const cachingMock = createCachingMock({ store: new Store() });
+ const fetchCache = createFetchCache({ Store });

Internal API changes
- Rename all classes, interfaces, types, from JFMC* to FMC*
- Internal API change change efdf25b7b0a2e6ba6571c74ef022a5820cd09b8c, affects alternative Storage classes.