[FASTIFY] Implement the mapLayers() method in PlatformFastify
### Is your feature request related to a problem? Please describe.

Related: https://github.com/tsedio/tsed/issues/932

See PR #2437 

The PlatformFastify need to have maLayers method to works properly. This method is responsible to map Ts.ED route layer to Fastify methods (GET, POST, PUT, etc...).

You can take as comparaison the existing mapLayers method for PlatformExpress and PlatformKoa here:

- https://github.com/tsedio/tsed/blob/production/packages/platform/platform-express/src/components/PlatformExpress.ts#L117
- https://github.com/tsedio/tsed/blob/production/packages/platform/platform-koa/src/components/PlatformKoa.ts#L109


### Describe the solution you'd like

_No response_

### Describe alternatives you've considered

_No response_

### Additional context

_No response_

### Acceptance criteria

- [ ] mapLayers map all Ts.ED route layers to Fastify