[FASTIFY] Implement the mapLayers() method in PlatformFastify

[Romakita]

Is your feature request related to a problem? Please describe.

Related: #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